Perhaps you should try some spelling variations:
dung cong » dung trong
van dung » van dong, xay dung, tin dung
su sach » vu sach
tuc van » thuc van, truc van, tuc va
cua tre » cua te, cua triet, dua tren
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach
cuu tre » cau tren, cau treo
ve cam » ve cham, ve cac, va cam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) ky nang xa hoi. hieu ve cam tuc van dung cong ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky nang xa hoi. hieu ve cam tuc van dung cong ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky nang xa hoi. hieu ve cam tuc van dung cong ((cua tre) or (cuu tre))*".