Perhaps you should try some spelling variations:
dang xay » dang van, van xay
ban hanh » ban hang
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
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: su ((sach y) or (sac ky)) dang xay hoi. hieu ve cam xuc ((van ban) or (ban hanh)) vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach y) OR (sac ky)) dang xay hoi. hieu ve cam xuc ((van ban) OR (ban hanh)) vai cua tu.
• Adding a wildcard symbol may retrieve word variants: su ((sach y) or (sac ky)) dang xay hoi. hieu ve cam xuc ((van ban) or (ban hanh)) vai cua tu*.