Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
van hanh » van thanh, ban hanh, van anh
van hac » van ha, van hai, van chat
van hoc » van hoa
duy van » duy vat, dung van
san ty » san tay, van ty
xang x » nang x
vi cua » vai cua, di cua
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: thuat san ty xang x hoi. hieu ((van hac) or (van hoc)) duy van hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ty xang x hoi. hieu ((van hac) OR (van hoc)) duy van hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: thuat san ty xang x hoi. hieu ((van hac) or (van hoc)) duy van hanh vi cua tu*.