Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, van anh, van ban
hieu van » hieu va, thien van, lieu va
van than » van thanh, van thang, van tuan
than luc » nhan luc, than duc, thanh luu
ban hanh » ban hang
cua tre » cua te, cuu tre, dua tren
te sach » toc sach
nang xa » nang x, lang xa, nang ma
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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 v nang xa hoi. hieu van than luc ((ban hanh) or (van hanh)) vai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang xa hoi. hieu van than luc ((ban hanh) OR (van hanh)) vai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang xa hoi. hieu van than luc ((ban hanh) or (van hanh)) vai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach v nang xa hoi. hieu van than luc ((ban hanh) or (van hanh)) vai ((cua tre) OR (cua triet))*.