Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va giao » van giao, va giai, va gia
tinh vi » trinh vi, tinh voi, dinh vi
tinh va » tich va, trinh van, trinh vat
tu dan » tuc dan, tu ban, cu dan
dan ky » van ky
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: tu dan ky nang xa hoi. hieu va giao duc va ((tinh vi) OR (tinh va)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu dan ky nang xa hoi. hieu va giao duc va ((tinh vi) OR (tinh va)) cua te".
• Adding a wildcard symbol may retrieve word variants: tu dan ky nang xa hoi. hieu va giao duc va ((tinh vi) OR (tinh va)) cua te*.