Perhaps you should try some spelling variations:
hieu quan » lieu quan, thien quan, lien quan
lang van » dang van, tang van, hoang van
van hanh » van thanh, ban hanh, van anh
tham soc » cham soc, tham nuoc, thai son
luu tre » luu tru, cuu tre, luy tre
va hanh » va thanh, va danh, ban hanh
ky lang » ky nang, ky dang, ky tang
van hoi » van hoa, van hoc, van hoe
vi luu » vi lua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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 van hoi. ((hieu quan) or (hieu qua)) tham soc ((va hanh) or (van hanh)) vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang van hoi. ((hieu quan) OR (hieu qua)) tham soc ((va hanh) OR (van hanh)) vi luu tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky lang van hoi. ((hieu quan) or (hieu qua)) tham soc ((va hanh) or (van hanh)) vi luu tre*.