Perhaps you should try some spelling variations:
tinh ven » trinh ven, tinh yen, sinh vien
cau tren » cu tren, dau tren, ca tren
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
tinh ve » trinh ve, dinh ve, tinh va
te ban » te bao
ban ky » van ky, dan ky
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ban ky tang xa hoi. hieu va cam luc va ((tinh ve) or (tinh ven)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ban ky tang xa hoi. hieu va cam luc va ((tinh ve) OR (tinh ven)) cau tren.
• Adding a wildcard symbol may retrieve word variants: te ban ky tang xa hoi. hieu va cam luc va ((tinh ve) or (tinh ven)) cau tren*.