Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
thu va » thuc va, thue va, thu ha
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu ve cam ((thu va) OR (tu va)) hanh ((vi cua) OR (di cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu ve cam ((thu va) OR (tu va)) hanh ((vi cua) or (di cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu ve cam ((thu va) OR (tu va)) hanh ((vi cua) or (di cua)) tre*.