Perhaps you should try some spelling variations:
ngang cho » ngang tho, sang cho, hang cho
nang cho » nang chon, sang cho, hang cho
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
hanh de » hanh ve, hanh kem
vuc van » duc van, luc van, thuc van
cac vuc » cac nuoc, cac vung, cac cuoc
va cach » va cac
cach tu » cach thuc
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: va cach tu ((((nang cho) OR (ngang cho))) or (nang cao)) hoc. hieu ve cac vuc van hanh de cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: va cach tu ((((nang cho) OR (ngang cho))) OR (nang cao)) hoc. hieu ve cac vuc van hanh de cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "va cach tu ((((nang cho) OR (ngang cho))) or (nang cao)) hoc. hieu ve cac vuc van hanh de cua cau*".