Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
xa hanh » xa thanh, xa khanh, da hanh
lam tuc » lam thuoc, lam truoc, luat tuc
van lam » van nam
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y ((nang xa) or (nang ma)) hoi. hieu van lam tuc ((xa hanh) OR (va hanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang xa) OR (nang ma)) hoi. hieu van lam tuc ((xa hanh) OR (va hanh)) vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang xa) or (nang ma)) hoi. hieu van lam tuc ((xa hanh) OR (va hanh)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) or (nang ma)) hoi. hieu van lam tuc ((xa hanh) OR (va hanh)) vai cua tre*.