Perhaps you should try some spelling variations:
hieu va » lieu va, hieu qua
va giao » van giao, va giai, va gia
va tinh » may tinh
tinh vi » trinh vi, tinh voi, tinh va
te ban » te bao
ban ky » van ky, dan ky
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu
x hoi » o hoi, x ho, 5 hoi

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

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