Perhaps you should try some spelling variations:
dung tren » dung trong, dung trung
thuat san » thuat toan, thuat song, thuat lanh
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
cac luc » cau luc, coc luc, cac nuoc
luc van » luoc van, luu van, duc van
van anh » van thanh, tuan anh, van minh
anh vai » anh va, anh bai, anh van
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) OR (lieu va)) cac luc van anh vai ((dung tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ky nang xa hoi. ((hieu va) OR (lieu va)) cac luc van anh vai ((dung tren) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san ky nang xa hoi. ((hieu va) OR (lieu va)) cac luc van anh vai ((dung tren) or (cua te))*".