Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
va hanh » va thanh, va danh, ban hanh
buu tre » cuu tre
te ban » te bao
ban ky » van ky, dan ky
va cam » va cham, va cac, va cao

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 lang xa hoi. hieu va cam luc ((va hanh) or (van hanh)) tai buu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ban ky lang xa hoi. hieu va cam luc ((va hanh) OR (van hanh)) tai buu tre.
• Adding a wildcard symbol may retrieve word variants: te ban ky lang xa hoi. hieu va cam luc ((va hanh) or (van hanh)) tai buu tre*.