Perhaps you should try some spelling variations:
danh xay » dang xay, manh xay, anh xay
va triet » va trien, ve triet, cua triet
thuc va » thuc vat, thuc dan, thuc day
ky danh » ky anh, ky dang
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
tu sac » tu sach, tu cac, tu san
xuc va » duc va, tuc va, luc va
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky danh xay hoi. hieu ve cam ((xuc va) or (thuc va)) hanh vi ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky danh xay hoi. hieu ve cam ((xuc va) OR (thuc va)) hanh vi ((va triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky danh xay hoi. hieu ve cam ((xuc va) or (thuc va)) hanh vi ((va triet) or (va thiet))*.