Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
thien van » thi van
toc sach » hoc sach, doc sach, thuoc sach
van thai » van thoai, van tai, van hai
thai tuc » thai thuc, thai thuy, thai hoc
kinh dau » tinh dau, kinh dao, kinh danh
nang xa » nang x, lang xa, nang ma
xa kinh » va kinh, xa sinh, xa tinh
cua tre » cuu tre, cua triet, dua tren
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: ((toc sach) or (thuat san)) ky nang xa hoi. thien van thai tuc xa kinh dau ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (thuat san)) ky nang xa hoi. thien van thai tuc xa kinh dau ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (thuat san)) ky nang xa hoi. thien van thai tuc xa kinh dau ((cua tre) or (cua te))*.