Perhaps you should try some spelling variations:
thuat san » thuat song, thuat lanh, thuat xay
hang doi » hang di, hang loi, huong doi
hieu van » hieu va, thien van, lieu va
ve triet » va trien, su triet
lam duc » lam duoc, pham duc, nam duoc
hanh de » hanh ve, hanh kem
van lam » van nam
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat san) or (thuat toan)) ky nang o hoi. hieu van lam duc va ((hanh de) or (hang doi)) ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat san) OR (thuat toan)) ky nang o hoi. hieu van lam duc va ((hanh de) OR (hang doi)) ve triet.
• Adding a wildcard symbol may retrieve word variants: ((thuat san) or (thuat toan)) ky nang o hoi. hieu van lam duc va ((hanh de) or (hang doi)) ve triet*.