Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xang co » nang co, lang co, tang co
cua cau » cua cac, cua chu, cua cay
ve cac » vien cac
du van » duy van, duc van, tu van
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty xang co hoc. hieu ((ve cac) or (va cac)) du van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang co hoc. hieu ((ve cac) OR (va cac)) du van hanh vi cua cau*.