Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh tai » thanh hai, thanh toan, doanh tai
cao hoc » co hoc, cho hoc, chat hoc
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
tai duc » tai cuc, mai duc, tai du
duc tre » duoc tren, duc tien
sac ky » cac ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sac ky) OR (sai ky)) nang cao hoc. hieu ve cam xuc ban thanh tai duc tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac ky) OR (sai ky)) nang cao hoc. hieu ve cam xuc ban thanh tai duc tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) OR (sai ky)) nang cao hoc. hieu ve cam xuc ban thanh tai duc tre*.