Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, doanh tai
van thanh » ban thanh, van tuan
pham duy » pham duc
cham duc » pham duc, cham soc, phan duc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
tai cua » thai cua, tai cuc, tri cua
thu sac » thu sach, thu san, thu xac
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky ((nang ma) or (nang x)) hoi. hieu ve ((cham duc) or (pham duy)) van thanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky ((nang ma) OR (nang x)) hoi. hieu ve ((cham duc) OR (pham duy)) van thanh tai cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sac ky ((nang ma) or (nang x)) hoi. hieu ve ((cham duc) or (pham duy)) van thanh tai cua triet*.