Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
te sach » toc sach
su kham » su pham, vu kham, so kham
hieu su » hieu sau, tieu su, hieu so
lam hoi » lam thoi, nam hoi, lai hoi
duy van » dung van
tuc va » thuc va, truc va, tuc xa
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: te sach ((duy van) OR (duy vat)) lam hoi. hieu su kham ((duc va) or (tuc va)) thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((duy van) OR (duy vat)) lam hoi. hieu su kham ((duc va) OR (tuc va)) thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((duy van) OR (duy vat)) lam hoi. hieu su kham ((duc va) or (tuc va)) thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((duy van) OR (duy vat)) lam hoi. hieu su kham ((duc va) or (tuc va)) thanh vi cua te*.