Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
van hanh » van thanh, ban hanh, van anh
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » va thanh, va danh, ban hanh
buu tre » cuu tre
te ban » te bao
ban ky » van ky, dan ky
ha hoi » hoa hoi, ha noi, xa hoi

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 ha hoi. hieu va cham 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 ha hoi. hieu va cham luc ((va hanh) OR (van hanh)) tai buu tre.
• Adding a wildcard symbol may retrieve word variants: te ban ky lang ha hoi. hieu va cham luc ((va hanh) or (van hanh)) tai buu tre*.