Perhaps you should try some spelling variations:
ngang cho » nang cho, ngang tho, sang cho
van hanh » van thanh, ban hanh, van ban
ty ngang » ly ngan, te ngan, tu ngan
hoc cac » hoc cao
cua cau » cua cac, cua chu, cua can
van anh » van thanh, tuan anh, van minh
cac vuc » cac nuoc, cac vung, cac cuoc
hieu ve » hieu va, hieu van
cho hoc » co hoc, khoa hoc
cua cay » cua cac
cac ty » cac ky, cac tu
ve cac » va cac, vien cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc cac ty ngang cho hoc. hieu ve cac vuc ((van hanh) OR (van anh)) vi ((cua cau) OR (cua cay))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc cac ty ngang cho hoc. hieu ve cac vuc ((van hanh) or (van anh)) vi ((cua cau) OR (cua cay))~".
• Adding a wildcard symbol may retrieve word variants: hoc cac ty ngang cho hoc. hieu ve cac vuc ((van hanh) or (van anh)) vi ((cua cau) OR (cua cay))*.