Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
ban thanh » ban hanh, ban hang
thanh ve » hanh ve, thanh va, thanh vien
nang cho » nang chon, ngang cho, nang cao
cach tru » cach tu, cach tieu, sach truc
xuc ban » duc ban, cuc ban, quoc ban
cac xuc » cam xuc, cac nuoc, chat xuc
cho hoc » co hoc, khoa hoc
hieu ve » hieu va, hieu van
cac tru » ca tru, cac tro, cac thu
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 ((((cach tru) or (cac tru))) or (cach thuc)) nang cho hoc. hieu ve cac xuc ban thanh ve cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((((cach tru) OR (cac tru))) OR (cach thuc)) nang cho hoc. hieu ve cac xuc ban thanh ve cua cau*.