Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
va cham » va tham
va chat » van chat, va phat, cao chat
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
tai cua » thai cua, tai cuc, tri cua
luc van » luoc van, luu van, duc van
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cam » va cac, va cao, va cai
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky lang xa hoi. hieu ((va cam) or (((va cham) or (va chat)))) luc van hanh tai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. hieu ((va cam) OR (((va cham) OR (va chat)))) luc van hanh tai cua tu.
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu ((va cam) or (((va cham) or (va chat)))) luc van hanh tai cua tu*.