Perhaps you should try some spelling variations:
"te sach xa ha lam doanh thong minh" » "te sach xa ha lam doanh thuong minh", "te sach xa ha lam doanh tong minh", "te sach xa ha lam doanh trong minh", "te sach xa ha lam doanh hoang minh", "te sach xa ha lap doanh thong minh", "te sach xa ha lai doanh thong minh", "te sach xa ha sam doanh thong minh", "te sach dao ha lam doanh thong minh", "te sach nha ha lam doanh thong minh", "te sach bai ha lam doanh thong minh", "te sach xa nha lam doanh thong minh", "te sach xa hay lam doanh thong minh", "te sach xa ha nam doanh thong minh", "te sach xa hoa lam doanh thong minh", "te sach xa hai lam doanh thong minh", "te sach la ha lam doanh thong minh"
"toc sach cha de giai doan thong tin" » "toc sach cha de giai toan thong tin", "toc sach cha de giai doanh thuong tin", "toc sach cha de giai doan phuong tin", "hoc sach cha de giai doan thong tin", "doc sach cha de giai doan thong tin", "thuoc sach cha de giai doan thong tin", "toc sach nha de giai doan thong tin", "toc sach che de giai doan thong tin", "toc sach ha de giai doan thong tin", "toc sach cha dan giai doan thong tin", "toc sach cha kem giai doan thong tin", "toc sach cha me giai doan thong tin", "toc sach chat deo giai doan thong tin", "toc sach cham den giai doan thong tin"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("toc sach cha de giai doan thong tin") or ("te sach xa ha lam doanh thong minh"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("toc sach cha de giai doan thong tin") OR ("te sach xa ha lam doanh thong minh")).
• Removing quotes may allow a broader search: (( toc sach cha de giai doan thong tin ) or ( te sach xa ha lam doanh thong minh )).
• Adding a wildcard symbol may retrieve word variants: (("toc sach cha de giai doan thong tin") or ("te sach xa ha lam doanh thong minh"))*.