Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
hieu va » lieu va, hieu qua
cao suc » cao su, cao duc
va tinh » may tinh
tinh do » trinh do, tinh doi, tinh da
san ky » sang ky, van ky, dan ky
nang o » nang co, nang ho, nang ro
cua te » cua tu
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 ky nang o hoi. hieu va ((cao suc) or (giao duc)) va tinh do ((cua te) or (qua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ky nang o hoi. hieu va ((cao suc) OR (giao duc)) va tinh do ((cua te) OR (qua su)).
• Adding a wildcard symbol may retrieve word variants: thuat san ky nang o hoi. hieu va ((cao suc) or (giao duc)) va tinh do ((cua te) or (qua su))*.