Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dua tren » dung tren
vat danh » va danh, van danh, luat danh
cuu thuc » cuu tac
danh di » danh du, xanh di, danh dien
tu cach » tu cac
lang ha » long ha
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
hieu ve » hieu va, hieu van
ha hoi » hoa hoi, ha noi, xa hoi
ve cuu » ve cau, ve chu, ve cua

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