Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh do » thanh de, thanh pho, thanh hoa
thu ban » thu hang
doc hoi » duoc hoi, hoc hoi, doi hoi
doc hai » hoc hai, duc hai, do hai
hieu va » lieu va, hieu qua
ban ky » van ky, dan ky
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
do cua » doi cua, co cua, de cua
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: thu ban ky nang ((doc hoi) OR (doc hai)). hieu va cam xuc va thanh do cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ban ky nang ((doc hoi) OR (doc hai)). hieu va cam xuc va thanh do cua te".
• Adding a wildcard symbol may retrieve word variants: thu ban ky nang ((doc hoi) OR (doc hai)). hieu va cam xuc va thanh do cua te*.