Perhaps you should try some spelling variations:
va hanh » van hanh, va thanh, va danh
va dinh » van dinh, va kinh, va tinh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
di cua » dai cua, doi cua, de cua
vi cua » vai cua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao

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