Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
xa dung » xay dung, va dung, a dung
xa dong » ha dong, van dong, lao dong
doi cua » dai cua, hoi cua, dong cua
cua tre » cua te, cuu tre, cua triet

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