Perhaps you should try some spelling variations:
chua triet » cua triet, chua thiet, chua trieu
cau thuc » cau truc, cuu thuc, can thuc
sach ty » sach y, sach tu, sach thu
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
va chua » vua chua, ca chua, va chu
sai ky » sac ky
va cau » van cau, va cac, va dau

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

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