Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cau treo » cau theo, cau triet, cau trieu
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
xuc van » duc van, luc van, vuc van
hieu va » lieu va, hieu qua
va cham » va chat, va tham
ky tang » ky nang, ky dang, kho tang
ky sang » ky nang, ky dang, duy sang
ma hoi » mai hoi, xa hoi, ma hoa
su xac » pu xac, su cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ((ky sang) OR (ky tang)) ma hoi. hieu va cham xuc van hanh vi ((cau treo) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ((ky sang) OR (ky tang)) ma hoi. hieu va cham xuc van hanh vi ((cau treo) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ((ky sang) OR (ky tang)) ma hoi. hieu va cham xuc van hanh vi ((cau treo) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: su xac ((ky sang) OR (ky tang)) ma hoi. hieu va cham xuc van hanh vi ((cau treo) or (cau tren))*.