Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
thuat cao » thuat co, thuat bao, thuat cam
va triet » va thiet, va trien, ve triet
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
va cham » va chat, va tham
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
hanh tu » anh tu, danh tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat cao ky ((nang xa) or (nang x)) hoi. hieu va cham truc va hanh tu va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat cao ky ((nang xa) OR (nang x)) hoi. hieu va cham truc va hanh tu va triet.
• Adding a wildcard symbol may retrieve word variants: thuat cao ky ((nang xa) or (nang x)) hoi. hieu va cham truc va hanh tu va triet*.