Perhaps you should try some spelling variations:
thien van » thi van
te sach » toc sach
cam duc » cam xuc, cao duc, pham duc
lap cua » lai cua, tap cua, lam cua
va kinh » va tinh, qua kinh
va dinh » van dinh, va tinh, vu dinh
van cam » van nam, van lam, van cau
cua tre » cua te, cuu tre, cua triet
y sang » _ sang, duy sang
ma hoi » mai hoi, ma hoa, me hoi

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 sang ((ma hoi) or (xa hoi)). thien van cam duc ((va dinh) OR (va kinh)) lap cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y sang ((ma hoi) OR (xa hoi)). thien van cam duc ((va dinh) OR (va kinh)) lap cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y sang ((ma hoi) or (xa hoi)). thien van cam duc ((va dinh) OR (va kinh)) lap cua tre*".