Perhaps you should try some spelling variations:
cac nuoc » hoc nuoc, dat nuoc, cua nuoc
cap nuoc » dat nuoc
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
danh co » danh cho, doanh co, anh co
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
dan co » dan cho, dang co, dan ca
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang xa hoi. hieu va ((cac nuoc) OR (cap nuoc)) va ((dan co) or (danh co)) cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang xa hoi. hieu va ((cac nuoc) OR (cap nuoc)) va ((dan co) OR (danh co)) cua su*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang xa hoi. hieu va ((cac nuoc) OR (cap nuoc)) va ((dan co) or (danh co)) cua su*".