Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
lang thi » lang thai, dang thi, tang thi
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va lang » va nang, hoa lang
cua tuc » cua duc, cua tu, cua thuoc
san ky » sang ky, van ky, dan ky
cua te » cua tu

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 xa hoi. hieu va cac nuoc va lang thi ((cua te) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ky nang xa hoi. hieu va cac nuoc va lang thi ((cua te) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: thuat san ky nang xa hoi. hieu va cac nuoc va lang thi ((cua te) or (cua tuc))*.