Perhaps you should try some spelling variations:
cam luc » cam xuc, cau luc
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
ky dang » ky nang, ky danh
va cam » va cham, va cac, va cao
sac ky » cac ky, sai ky
vi cua » vai cua
di cua » dai cua, doi cua, de cua
su sac » su sach, su cac, su xac

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

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