Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
xang cho » sang cho, hang cho, bang cho
van hanh » van thanh, ban hanh, van anh
tang cho » trang cho, sang cho, hang cho
te sach » toc sach
vuc van » duc van, luc van, thuc van
cua cau » cua cac, cua chu, cua cay
sach ty » sach y, sach tu, sach thu
vi cua » vai cua, di cua
ve cac » va cac

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 cho) or (tang cho)) hoc. hieu ((ve cac) OR (vien cac)) vuc van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((xang cho) OR (tang cho)) hoc. hieu ((ve cac) OR (vien cac)) vuc van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((xang cho) or (tang cho)) hoc. hieu ((ve cac) OR (vien cac)) vuc van hanh vi cua cau*".