Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tang cho » trang cho, sang cho, hang cho
hanh tai » thanh tai, hang tai, han tai
te sach » toc sach
cua can » cua ban, cua dan, cua cay
cua cau » cua chu, cua cay, cua cu
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
cho hoc » co hoc, khoa hoc
ty tang » tay tang, ty xang, ty hang
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 tang cho hoc. hieu ve cac xuc van hanh tai ((((cua cau) or (cua can))) or (cua cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty tang cho hoc. hieu ve cac xuc van hanh tai ((((cua cau) OR (cua can))) OR (cua cac))*.