Perhaps you should try some spelling variations:
nang chon » nang cao, nang hoc, sang cho
nang cho » ngang cho, nang cao, sang cho
van hanh » van thanh, ban hanh, van ban
te cach » ve cach, te sach, tu cach
vai cua » dai cua, hai cua, lai cua
van anh » van thanh, tuan anh, van minh
cua cau » cua cac, cua chu, cua cay
cac vuc » cac nuoc, cac vung, cac cuoc
cach tu » cach thuc
hieu ve » hieu va, hieu van
ve cac » va cac, vien cac

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 tu ((nang cho) or (nang chon)) hoc. hieu ve cac vuc ((van hanh) OR (van anh)) vai cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach tu ((nang cho) OR (nang chon)) hoc. hieu ve cac vuc ((van hanh) OR (van anh)) vai cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cach tu ((nang cho) or (nang chon)) hoc. hieu ve cac vuc ((van hanh) OR (van anh)) vai cua cau*".