Perhaps you should try some spelling variations:
chet triet » chuyen triet, thuyet triet
lam chet » lam chat, la chet, lam chu
thu sach » tu sach, thuat sach, thuoc sach
hanh lam » thanh lap, hanh kem, hanh va
hieu van » hieu va, thien van, lieu va
va hanh » van hanh, va thanh, va danh
ban xuc » ban xu, ban duoc, ban phuc
tu cach » tu cac
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (thu sach)) ky ((nang xa) or (lang xa)) hoi. hieu van ban xuc va hanh lam chet triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) ky ((nang xa) OR (lang xa)) hoi. hieu van ban xuc va hanh lam chet triet.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ky ((nang xa) or (lang xa)) hoi. hieu van ban xuc va hanh lam chet triet*.