Perhaps you should try some spelling variations:
te sach » toc sach
van anh » van thanh, tuan anh
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
cho hoc » co hoc, khoa hoc
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac
ve cua » le cua, de cua, te 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 ((ty nang) or (ty hang)) cho hoc. hieu ve cac luc ((van anh) OR (van minh)) ve cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty hang)) cho hoc. hieu ve cac luc ((van anh) OR (van minh)) ve cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) or (ty hang)) cho hoc. hieu ve cac luc ((van anh) OR (van minh)) ve cua cau*".