Perhaps you should try some spelling variations:
dung cong » dung trong
cong cua » cong cu, dong cua, huong cua
vu sach » vu bach, su sach, vu khach
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
xa dung » xay dung, xa dong, va dung
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ((y nang) OR (v nang)) xa hoi. ((hieu ve) or (lieu va)) cam tuc xa dung cong cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((y nang) OR (v nang)) xa hoi. ((hieu ve) OR (lieu va)) cam tuc xa dung cong cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((y nang) OR (v nang)) xa hoi. ((hieu ve) or (lieu va)) cam tuc xa dung cong cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ((y nang) OR (v nang)) xa hoi. ((hieu ve) or (lieu va)) cam tuc xa dung cong cua tre*.