Perhaps you should try some spelling variations:
thuat machh » thuat sach, thuat tach
thuat mach » thuat sach, thuat tach, thuyet mach
truoc bang » thuoc bang, truoc cang, truoc cong
lam truoc » lam thuoc, nam truoc, lam truong
bang hang » ban hang, hang hang, nang hang
hieu van » hieu va, thien van, lieu va
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 mach) or (thuat machh)) ky nang xa hoi. hieu van lam truoc bang hang vi hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat mach) OR (thuat machh)) ky nang xa hoi. hieu van lam truoc bang hang vi hoa viet.
• Adding a wildcard symbol may retrieve word variants: ((thuat mach) or (thuat machh)) ky nang xa hoi. hieu van lam truoc bang hang vi hoa viet*.