Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
lang hoa » hang hoa, lang ha, nang hoa
cuu thuc » cuu tac
cua tre » cua te, cuu tre, dua tren
dinh ve » dinh ket, dinh van
va dinh » van dinh, va kinh, va tinh
thuc va » thuc vat, thuc dan, thuc day
tu cach » tu cac
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
hieu va » lieu va, hieu qua
va cuu » va cau, va chu, va huu

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