Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
dua tren » dung tren
van chat » cao chat
chat soc » cham soc, chat hoc, chat doc
thanh ve » hanh ve, thanh va, thanh van
hieu van » hieu va, thien van, lieu va
soc gia » toc gia, hoc gia, so gia
nang xa » nang x, lang xa, nang ma
cu tren » tu tren
sac ky » cac ky, sai ky
vu sac » vu sach, vu san, va sac

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang xa hoi. hieu van chat soc gia ((thanh ve) or (thanh vien)) ((cu tren) OR (dua tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang xa hoi. hieu van chat soc gia ((thanh ve) OR (thanh vien)) ((cu tren) OR (dua tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang xa hoi. hieu van chat soc gia ((thanh ve) or (thanh vien)) ((cu tren) OR (dua tren))".
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang xa hoi. hieu van chat soc gia ((thanh ve) or (thanh vien)) ((cu tren) OR (dua tren))*.