Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
hieu van » hieu va, thien van, lieu va
van nhan » van phan, van thanh, danh nhan
nhan tai » hang tai, van tai, toan tai
nang xa » nang x, lang xa, nang ma
dau tuc » dao tuc, cau truc, dau nuoc
cua tre » cuu tre, cua triet, dua tren
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 van ((dau tuc) OR (dau tu)) van nhan tai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ky nang xa hoi. hieu van ((dau tuc) OR (dau tu)) van nhan tai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san ky nang xa hoi. hieu van ((dau tuc) OR (dau tu)) van nhan tai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuat san ky nang xa hoi. hieu van ((dau tuc) OR (dau tu)) van nhan tai ((cua tre) or (cua te))*.