Perhaps you should try some spelling variations:
tru nang » tra nang, tri nang, truc nano
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
cau theo » cau thi, cau tao
te sach » toc sach
tu nang » tu nong, tu nano, tu lang
van cam » van nam, van lam, van cau
xuc van » duc van, luc van, xuc ban
vi cau » va cau, ve cau, di cau

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 ((tu nang) or (tru nang)) xa hoi. hieu van cam xuc van hanh vi cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu nang) OR (tru nang)) xa hoi. hieu van cam xuc van hanh vi cau theo.
• Adding a wildcard symbol may retrieve word variants: te sach ((tu nang) or (tru nang)) xa hoi. hieu van cam xuc van hanh vi cau theo*.