Perhaps you should try some spelling variations:
ban hanh » ban hang
nano cho » nang cho, nano cuo, nang chon
van hanh » van thanh, van anh, van ban
ve cach » va cach, ve cac, ve canh
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
cua cau » cua cac, cua chu, cua cay
cach tu » cach thuc
hieu ve » hieu van
cho hoc » co hoc, khoa hoc
tu nano » truc nano
vi cua » vai cua, di cua

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

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