Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
xuc van » duc van, luc van, xuc ban
tu sac » tu sach, tu cac, tu san
cua tu » cua tuc, cua su, cua cu
ve cac » va cac, vien cac
sac ky » cac ky, sai ky
ve cam » ve cham, va cam, ve cai

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

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