Perhaps you should try some spelling variations:
sach thi » sach thu, sach tai, sach thieu
thi hanh » thi thanh
hanh cho » danh cho, hang cho, han cho
te sach » toc sach
cac xuc » cac nuoc, chat xuc, cac cuoc
hieu ve » hieu va, hieu van
cho hoc » co hoc, khoa hoc
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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