Perhaps you should try some spelling variations:
nganh che » nganh nghe, nganh co, hanh che
ngan cho » ngang cho, ngang tho, san cho
van hanh » van thanh, ban hanh, van ban
te cach » ve cach, te sach, tu cach
cac luc » cau luc, coc luc, cac nuoc
van anh » van thanh, tuan anh, van minh
cua cau » cua cac, cua chu, cua cay
cach tu » cach thuc
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua
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 ((ngan cho) or (nganh che)) hoc. hieu ve cac luc ((van hanh) OR (van anh)) vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach tu ((ngan cho) OR (nganh che)) hoc. hieu ve cac luc ((van hanh) OR (van anh)) vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cach tu ((ngan cho) or (nganh che)) hoc. hieu ve cac luc ((van hanh) OR (van anh)) vi cua cau*".