Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
tham thuc » pham thuc, tam thuc, thai thuc
kho tang » cao tang
phap hoc » phap hoan, phap mo, phap han
cuu tre » cua tre, cau tren, cau treo
tang ma » mang may, tang van
sai kho » dai kho, tai khoa, dai khoa
va hanh » van hanh, va thanh, va danh
vi cuu » vi luu, vinh cuu
tu sai » tu bai, tu san, tu cai
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai kho tang ma hoi. lieu va ((tham thuc) or (((phap hoc) or (nham thuc)))) va hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai kho tang ma hoi. lieu va ((tham thuc) OR (((phap hoc) OR (nham thuc)))) va hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sai kho tang ma hoi. lieu va ((tham thuc) or (((phap hoc) or (nham thuc)))) va hanh vi cuu tre*.