Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
ve cai » va cai, ve cac, ve cau
ve tai » te tai, de tai, le tai
loc va » hoc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang xa hoi. hieu ((((ve cai) OR (ve tai))) or (ve cham)) loc va hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang xa hoi. hieu ((((ve cai) OR (ve tai))) OR (ve cham)) loc va hanh vi cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang xa hoi. hieu ((((ve cai) OR (ve tai))) or (ve cham)) loc va hanh vi cua viet".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang xa hoi. hieu ((((ve cai) OR (ve tai))) or (ve cham)) loc va hanh vi cua viet*.