Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
sach ty » sach tu, sach thu, xach tay
van hac » van hoc, van ha, van hai
hac duy » pham duy, phan duy
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) OR (sach y)) xang x hoi. hieu van hac duy van hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ty) OR (sach y)) xang x hoi. hieu van hac duy van hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach ty) OR (sach y)) xang x hoi. hieu van hac duy van hanh vi cua te*.