Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
duc van » duc va, duc tan, duc manh
hanh ve » hanh vi, hanh va, hanh kem
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cua » le cua, de cua, te cua

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 nang xa hoi. hieu ((qua cac) or (cua cac)) duc van hanh ve cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang xa hoi. hieu ((qua cac) OR (cua cac)) duc van hanh ve cua viet.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. hieu ((qua cac) or (cua cac)) duc van hanh ve cua viet*.