Perhaps you should try some spelling variations:
chat triet » chet triet, phat trien, chat thien
ban thanh » ban hanh, ban hang
thanh du » thanh de, thanh do, thanh tu
du chat » duoc chat, dung chat, doc chat
xuc ban » duc ban, cuc ban, quoc ban
sach ky » sach y, sach ty, sach kem
nang ro » nang co, nang ho, nang ra
ro hoi » co hoi, o hoi, mo hoi
va cam » va cham, va cac, va cao
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, ve cai

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 ky) OR (sac ky)) nang ro hoi. hieu ((ve cam) or (va cam)) xuc ban thanh du chat triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) nang ro hoi. hieu ((ve cam) OR (va cam)) xuc ban thanh du chat triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sac ky)) nang ro hoi. hieu ((ve cam) or (va cam)) xuc ban thanh du chat triet".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sac ky)) nang ro hoi. hieu ((ve cam) or (va cam)) xuc ban thanh du chat triet*.