Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
ban hang » ngan hang
sach ly » sach y, sach lo, sach ty
cuu tre » cua tre, cau treo
vu sach » vu bach, su sach, vu khach
cac xuc » cam xuc, cac nuoc, chat xuc
qua cac » cua cac
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
va hanh » van hanh, va thanh, va danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ly nang xa hoi. hieu qua cac xuc ((va hanh) or (ban hang)) dinh ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ly nang xa hoi. hieu qua cac xuc ((va hanh) OR (ban hang)) dinh ((cuu tre) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: vu sach ly nang xa hoi. hieu qua cac xuc ((va hanh) or (ban hang)) dinh ((cuu tre) or (cau tren))*.