Perhaps you should try some spelling variations:
ban thanh » ban hang
cham xuc » cam xuc, chat xuc, cham soc
van cham » van chat, van tham, va cham
ban hanh » ban hang
cau tren » cu tren, dau tren, ca tren
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
thi van » thi lan, thi hanh, thi nang
vai cau » va cau, van cau, vai cac
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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 ty nang o hoi. thi van cham xuc ((ban hanh) or (ban thanh)) vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang o hoi. thi van cham xuc ((ban hanh) OR (ban thanh)) vai cau tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang o hoi. thi van cham xuc ((ban hanh) or (ban thanh)) vai cau tren*.