Perhaps you should try some spelling variations:
nhan thong » nhan trong, nha thong, nhan khong
canh doanh » hanh doanh, chinh doanh, doanh doanh
thong sac » thong cac, thong bac, thong san
hoc kien » hoc vien, hoa kien, hoc lien
sac thai » rac thai, sach tham, toc thai
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc kien) or (hoc hien)) sach - canh doanh nhan thong thong sac thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc kien) OR (hoc hien)) sach - canh doanh nhan thong thong sac thai cao*.