Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cac xuc » cam xuc, cac nuoc, chat xuc
lai cua » dai cua, hai cua, lai chau
vai cua » dai cua, hai cua, bai cua
xuc van » duc van, luc van, vuc van
sach ty » sach y, sach thu, xach tay
hieu ve » hieu va, hieu van
cho hoc » co hoc, khoa hoc
sach tu » sach thu, cach tu, sach uu
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) OR (sach tu)) danh cho hoc. hieu ve cac xuc van hanh ((vai cua) or (lai cua)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) danh cho hoc. hieu ve cac xuc van hanh ((vai cua) OR (lai cua)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach tu)) danh cho hoc. hieu ve cac xuc van hanh ((vai cua) or (lai cua)) cau*".