Perhaps you should try some spelling variations:
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
te sach » toc sach
nang ma » tang ma, sang ma, mang may
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
ve cac » va cac, vien cac
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y ((nang ma) or (nang cao)) hoi. hieu ve cac xuc ((van hanh) or (ban hanh)) vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang ma) OR (nang cao)) hoi. hieu ve cac xuc ((van hanh) OR (ban hanh)) vi cua tu.
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang ma) or (nang cao)) hoi. hieu ve cac xuc ((van hanh) or (ban hanh)) vi cua tu*.