Perhaps you should try some spelling variations:
dat tren » dat trong, dua tren
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
van cham » van chat, van tham, va cham
cham xuc » cam xuc, chat xuc, cham soc
vu khach » vu khanh, vu khac, vay khach
nang xa » nang x, lang xa, nang ma
xuc van » duc van, luc van, vuc van
cu tren » tu tren, dua tren
vu sach » vu bach, su sach

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) ky nang xa hoi. hieu van cham xuc van hanh vai ((cu tren) OR (dat tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu khach)) ky nang xa hoi. hieu van cham xuc van hanh vai ((cu tren) or (dat tren))~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu khach)) ky nang xa hoi. hieu van cham xuc van hanh vai ((cu tren) or (dat tren))*.