Perhaps you should try some spelling variations:
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va
cam luc » cam xuc, cau luc
luc van » luoc van, luu van, duc van
tuan te » tuan le, tuan ts, tuan tien
tuan tu » tuan thu, tran tu, toan tu
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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

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