Perhaps you should try some spelling variations:
ky dang » ky danh
hieu ve » hieu va, hieu van
nha tuc » nha tu, nha thuoc, nham thuc
va hanh » van hanh, va thanh, va danh
te sac » te sach, te cac, te san
ve nha » ke nha
tuc va » thuc va, truc va, tuc xa
de van » le van, do van, he van
ve van » le van

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) or (ky nang)) xa hoi. hieu ve nha tuc va hanh ((de van) or (ve van)) trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ((ky dang) OR (ky nang)) xa hoi. hieu ve nha tuc va hanh ((de van) OR (ve van)) trien.
• Adding a wildcard symbol may retrieve word variants: te sac ((ky dang) or (ky nang)) xa hoi. hieu ve nha tuc va hanh ((de van) or (ve van)) trien*.