Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thuat sac » thuat san, thuat tac, thuat mach
lam truoc » lam thuoc, nam truoc, lam truong
truoc ban » truoc bang, thuoc ban, truc ban
hieu van » hieu va, thien van, lieu va
ban hang » ngan hang
nang xa » nang x, lang xa, nang ma
van lam » van nam
hang vi » hang va, hanh vi, hang di
vi hoa » voi hoa, vi hoc, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat sac) OR (thuat sach)) ky nang xa hoi. hieu van lam truoc ban hang vi hoa viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat sac) OR (thuat sach)) ky nang xa hoi. hieu van lam truoc ban hang vi hoa viet".
• Adding a wildcard symbol may retrieve word variants: ((thuat sac) OR (thuat sach)) ky nang xa hoi. hieu van lam truoc ban hang vi hoa viet*.