Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
dau theo » cau theo, dai theo, dam theo
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cam luc » cau luc
hanh va » hang va, hanh vi
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va dau » va dao

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 lang xa hoi. hieu va ((cam luc) or (cam xuc)) van hanh va dau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky lang xa hoi. hieu va ((cam luc) OR (cam xuc)) van hanh va dau theo*.