Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh van
hanh tai » thanh tai, hang tai, han tai
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
va cam » va cham, va cac, va cao
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
chua » cua, chu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky nang xa hoi. hieu va cam ((xuc va) OR (tuc va)) ((hanh vai) or (hanh tai)) sua chua~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang xa hoi. hieu va cam ((xuc va) OR (tuc va)) ((hanh vai) OR (hanh tai)) sua chua.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky nang xa hoi. hieu va cam ((xuc va) OR (tuc va)) ((hanh vai) or (hanh tai)) sua chua".
• Adding a wildcard symbol may retrieve word variants: tu san ky nang xa hoi. hieu va cam ((xuc va) OR (tuc va)) ((hanh vai) or (hanh tai)) sua chua*.