Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
thien van » thi van
chau tre » chau tho, cho tre, cau tra
danh lai » danh sai, gianh lai, dinh lam
tu sang » thu sang, tu san, tu lang
sach tu » sach thu, cach tu, sach ty
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
va danh » va dinh, va dan, va hanh
te sach » toc sach
ma hoi » mai hoi, ma hoa, me hoi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu sang ((ma hoi) OR (xa hoi)). thien van cam duc va danh lai ((chau tre) OR (chay tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu sang ((ma hoi) or (xa hoi)). thien van cam duc va danh lai ((chau tre) OR (chay tren))~".
• Adding a wildcard symbol may retrieve word variants: te sach tu sang ((ma hoi) or (xa hoi)). thien van cam duc va danh lai ((chau tre) OR (chay tren))*.