Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tru nang » tra nang, tri nang, truc nano
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
cau xuc » cam xuc, cau luc, cau truc
van anh » van thanh, tuan anh, van minh
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu hoach)) tru nang xa hoi. hieu van cau xuc ((van anh) or (ban hanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) tru nang xa hoi. hieu van cau xuc ((van anh) OR (ban hanh)) vi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) tru nang xa hoi. hieu van cau xuc ((van anh) or (ban hanh)) vi cua triet*.