Perhaps you should try some spelling variations:
ngang cho » nang cho, ngang tho, sang cho
hieu van » hieu va, thien van, lieu va
hanh doi » thanh doi, hanh noi, hang doi
ban hanh » ban hang
doi cua » dai cua, hoi cua
xuc ban » duc ban, cuc ban, quoc ban
cac xuc » cam xuc, cac nuoc, chat xuc
van cac » van hac, van cau, van bac
te cach » te sach, tu cach, te cac
ve cach » va cach, ve cac, ve canh
cua cau » cua cac, cua chu, cua cay

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