Perhaps you should try some spelling variations:
nuoc tuan » ngoc tuan, nuoc luan, nuoc quan
cap nuoc » dat nuoc
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
ve cua » le cua, de cua, te cua
anh ve » hanh ve, anh va, anh viet
cua te » cua tu

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) OR (toc sach)) ky nang xa hoi. ((hieu ve) or (hieu van)) cap nuoc tuan anh ve cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky nang xa hoi. ((hieu ve) OR (hieu van)) cap nuoc tuan anh ve cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ky nang xa hoi. ((hieu ve) or (hieu van)) cap nuoc tuan anh ve cua te".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ky nang xa hoi. ((hieu ve) or (hieu van)) cap nuoc tuan anh ve cua te*.