Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, nhanh vi
thanh ve » hanh ve, thanh va, thanh vien
cuu thuc » cuu tac
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
xuc va » tuc va, luc va, xac va

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 ty xang xa hoi. hieu va tham ((xuc va) or (duc va)) ((thanh vi) OR (thanh ve)) cuu thuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang xa hoi. hieu va tham ((xuc va) OR (duc va)) ((thanh vi) OR (thanh ve)) cuu thuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty xang xa hoi. hieu va tham ((xuc va) or (duc va)) ((thanh vi) OR (thanh ve)) cuu thuc".
• Adding a wildcard symbol may retrieve word variants: te sach ty xang xa hoi. hieu va tham ((xuc va) or (duc va)) ((thanh vi) OR (thanh ve)) cuu thuc*.