Perhaps you should try some spelling variations:
thien van » thi van
sach kem » hanh kem
hanh vai » hanh vi, hanh va, hanh tai
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
cau luc » cau truc, cau phuc
va hanh » van hanh, va thanh, va danh
luc va » duc va, tuc va, loc va
vai su » va su, van su, lai su

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach kem) or (sach y)) nang xa hoi. ((thien van) or (lieu va)) cau luc va hanh vai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach kem) OR (sach y)) nang xa hoi. ((thien van) OR (lieu va)) cau luc va hanh vai su triet.
• Adding a wildcard symbol may retrieve word variants: thu ((sach kem) or (sach y)) nang xa hoi. ((thien van) or (lieu va)) cau luc va hanh vai su triet*.