Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
thuc van » thuc vat, thuc dan, thuc va
cac thuc » cach thuc, cac thu, can thuc
vu nang » vuc nang, va nang, vu dang
hieu va » lieu va, hieu qua
van anh » van thanh, tuan anh, van minh
so sanh » do sanh
anh di » danh di, xanh di, anh d
v nang » va nang, van nang, voi nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ((v nang) or (vu nang)) xa hoi. hieu va cac thuc van anh di ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ((v nang) OR (vu nang)) xa hoi. hieu va cac thuc van anh di ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: so sanh ((v nang) or (vu nang)) xa hoi. hieu va cac thuc van anh di ((cua triet) or (va triet))*.