Perhaps you should try some spelling variations:
ngang tho » ngang cho, nguong tho, ang tho
ban thanh » ban hanh, ban hang
hoc sach » hoc sinh, hoc anh
thanh vi » hanh vi, thanh va, thanh ve
hieu van » hieu va, thien van, lieu va
ty ngang » ly ngan, te ngan, tu ngan
tho hoc » thao hoc, cho hoc, pho hoc
van cac » van hac, van cau, van bac
cac vuc » cac nuoc, cac vung, cac cuoc
vuc ban » vu ban, duc ban, cuc ban
hoc cac » hoc cao
cua cau » cua chu, cua cay, cua can

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) or (hoc cac)) ty ngang tho hoc. hieu van cac vuc ban thanh vi ((cua cau) or (cua cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc cac)) ty ngang tho hoc. hieu van cac vuc ban thanh vi ((cua cau) OR (cua cac))*.