Perhaps you should try some spelling variations:
luc quan » luc luan, tac quan, qua quan
cua tre » cua te, cuu tre, cua triet
kinh ve » kinh te, dinh ve, minh ve
duc qua » duc quan, duc quy, duc quoc
nang xa » nang x, lang xa, nang ma
va nam » van nam, ha nam, va nay
te bai » te bao, te tai, te ban
ve cua » le cua, de cua, te cua
te sai » te tai, te lai, te hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sai) or (te bai)) ky nang xa hoi. lieu va nam ((duc qua) OR (luc quan)) kinh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sai) OR (te bai)) ky nang xa hoi. lieu va nam ((duc qua) OR (luc quan)) kinh ve cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sai) or (te bai)) ky nang xa hoi. lieu va nam ((duc qua) OR (luc quan)) kinh ve cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sai) or (te bai)) ky nang xa hoi. lieu va nam ((duc qua) OR (luc quan)) kinh ve cua tre*.