Perhaps you should try some spelling variations:
hieu va » lieu va, hieu qua
va giao » van giao, va giai, va gia
duc may » duc mau, duc man, duc manh
tinh vi » trinh vi, tinh voi, tinh va
cu dan » cua dan, ca dan, co dan
dan ky » van ky
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: cu dan ky nang x hoi. hieu va giao duc may tinh vi ((cua te) OR (cua tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cu dan ky nang x hoi. hieu va giao duc may tinh vi ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: cu dan ky nang x hoi. hieu va giao duc may tinh vi ((cua te) OR (cua tu))*.