Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
hanh lam » thanh lap, hanh kem, hanh va
hanh lai » hanh tai, thanh lap, thanh loi
hieu vuc » hieu luc, hieu tuc, hieu thuc
vuc nang » cuc nang, vu nang, chuc nang
nang xa » nang x, lang xa, nang ma
sach v » sach va, sach y, sach vay
luc va » duc va, tuc va, loc va
sach 2 » sach y

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach v) OR (sach 2)) nang xa hoi. hieu vuc nang luc va ((hanh lai) or (hanh lam)) chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach v) OR (sach 2)) nang xa hoi. hieu vuc nang luc va ((hanh lai) OR (hanh lam)) chau triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach v) OR (sach 2)) nang xa hoi. hieu vuc nang luc va ((hanh lai) or (hanh lam)) chau triet".
• Adding a wildcard symbol may retrieve word variants: su ((sach v) OR (sach 2)) nang xa hoi. hieu vuc nang luc va ((hanh lai) or (hanh lam)) chau triet*.