Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
hung cho » chung cho, huong cho, dung cho
van hanh » van thanh, ban hanh, van anh
cac xuc » cam xuc, cac nuoc, chat xuc
cua cau » cua cac, cua chu, cua can
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
sach tu » cach tu, sach ty, sach uu
cho hoc » co hoc, khoa hoc
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: toc ((sach tu) OR (sach thu)) hung cho hoc. hieu ve cac xuc van hanh di ((cua cau) or (cua cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach tu) OR (sach thu)) hung cho hoc. hieu ve cac xuc van hanh di ((cua cau) OR (cua cay))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach tu) OR (sach thu)) hung cho hoc. hieu ve cac xuc van hanh di ((cua cau) or (cua cay))*".