Perhaps you should try some spelling variations:
thien van » thi van
sach thu » sach thue, sach thieu, sach tham
nam thuc » nam thuoc, nam thu, nam tu
sach tu » cach tu, sach ty, sach uu
lang xa » lang ha, dang xay, lang van
va nang » van nang, da nang, cam nang
nang di » nang du, hang di, nang ji
di cua » dai cua, doi cua, de 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 tu) OR (sach thu)) lang xa hoi. thien van ((nam thuc) or (am thuc)) va nang di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (sach thu)) lang xa hoi. thien van ((nam thuc) OR (am thuc)) va nang di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach tu) OR (sach thu)) lang xa hoi. thien van ((nam thuc) or (am thuc)) va nang di cua te".
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) OR (sach thu)) lang xa hoi. thien van ((nam thuc) or (am thuc)) va nang di cua te*.