Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
kham thuc » nham thuc, pham thuc, tham thuc
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
sang ma » tang ma, nang ma, sang tao
hieu vu » hieu va, hieu su, dieu vu
hieu ve » hieu va, hieu van
y sang » _ sang, duy sang
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y sang ma hoa. ((hieu vu) or (hieu ve)) kham thuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y sang ma hoa. ((hieu vu) OR (hieu ve)) kham thuc van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: thuat sach y sang ma hoa. ((hieu vu) or (hieu ve)) kham thuc van hanh vi cua te*.