Perhaps you should try some spelling variations:
xang hoc » nang hoc, bang hoc, mang hoc
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hoc hoc » hoc hoa, toc hoc, hoc hoi
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
cua cau » cua cac, cua can, cua cu
cua chu » sua chua
cua cay » cua cac
ve cac » va cac, vien 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 hoc hoc. hieu ve cac xuc van hanh vi ((((cua cau) OR (cua chu))) or (cua cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang hoc hoc. hieu ve cac xuc van hanh vi ((((cua cau) OR (cua chu))) OR (cua cay))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty xang hoc hoc. hieu ve cac xuc van hanh vi ((((cua cau) OR (cua chu))) or (cua cay))*".