Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
sach vuc » sach duoc, sach nuoc, sach truc
vuc nang » cuc nang, vu nang, chuc nang
hieu van » hieu va, lieu va, hieu ve
hanh de » hanh ve, hanh kem
hanh le » thanh le, hanh ve, manh le
te sach » toc sach
luc van » luoc van, luu van, duc van
nang xa » nang x, lang xa, nang ma
hau luc » hau loc, cau luc, nhan luc

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 vuc nang xa hoi. ((hieu van) or (thien van)) hau luc van ((hanh le) or (hanh de)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach vuc nang xa hoi. ((hieu van) OR (thien van)) hau luc van ((hanh le) OR (hanh de)) cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach vuc nang xa hoi. ((hieu van) or (thien van)) hau luc van ((hanh le) or (hanh de)) cua triet*.