Perhaps you should try some spelling variations:
khoan phap » khoan phai, khoa phau, han phap
phap chong » phap phong, phap cong, pham hong
thuc cach » thuoc sach, truoc cach, thuc hanh
phan hong » phan cong, pham hong, phan song
tu doanh » su doanh, te doanh, ty doanh
tai thuc » thai thuc, tri thuc, dai thuc
thuc cac » tuc cac, phuc cac, thac cac
sach tam » sach tham, sach tai, sach dao
tam thuc » tham thuc, am thuc, nam thuc
cach hoa » cach hoan, cach hoc, bach hoa
hoa phan » hoa dan, co phan
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu doanh tai thuc cac khoan phap chong ) or ( tu sach tam thuc cach hoa phan hong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu doanh tai thuc cac khoan phap chong ) OR ( tu sach tam thuc cach hoa phan hong )).
• Adding a wildcard symbol may retrieve word variants: (( tu doanh tai thuc cac khoan phap chong ) or ( tu sach tam thuc cach hoa phan hong ))*.