Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
ky dang » ky danh
hieu va » lieu va
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
hanh ve » hanh vi, hanh va, hanh kem
te sac » te sach, te cac, te san
luc va » duc va, tuc va, loc va
ve va » ve van, te va, ke va

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