Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
cay thuc » cay thuoc, can thuc, day thuc
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
thuc va » thuc vat, thuc dan, thuc day
tu cach » tu cac
lang ha » long ha
ky lang » ky nang, ky dang, ky tang
hieu ve » hieu va, hieu van
ha hoi » hoa hoi, ha noi, xa hoi
ve cay » ve cac, va cay, ve cai
cua tu » cua tuc, cua su, cua cu

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 (toc sach)) ky lang ha hoi. hieu ve cay thuc va danh vi ((cua tu) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (toc sach)) ky lang ha hoi. hieu ve cay thuc va danh vi ((cua tu) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (toc sach)) ky lang ha hoi. hieu ve cay thuc va danh vi ((cua tu) or (cua triet))*.