Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van hanh » van thanh, ban hanh, van anh
sach ty » sach y, sach tu, sach thu
van hac » van ha, van hai, van chat
van hoc » van hoa
duy van » duy vat, dung van
xang x » nang x
vi cua » vai cua, di cua
cua te » cua tu
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 sach ty xang x hoi. hieu ((van hac) OR (van hoc)) duy van hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty xang x hoi. hieu ((van hac) OR (van hoc)) duy van hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: thuat sach ty xang x hoi. hieu ((van hac) OR (van hoc)) duy van hanh vi cua te*.