Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
va trien » va truyen, va thiet, va tuyen
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
nam xua » nam cua, nam mua, nam qua
xua van » xua va, qua van, cua van
hanh ve » hanh vi, hanh va, hanh kem
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve va » ve van, te va, ke 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 sac ky dang xa hoi. ((hieu ve) or (lieu va)) nam xua van hanh ve va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang xa hoi. ((hieu ve) OR (lieu va)) nam xua van hanh ve va trien.
• Adding a wildcard symbol may retrieve word variants: te sac ky dang xa hoi. ((hieu ve) or (lieu va)) nam xua van hanh ve va trien*.