Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doan dieu » nhan dieu, toan dien
nang mai » nang ma, nang tai, lang mai
mai hoi » mai khoi, dai hoi, lai hoi
hieu so » thieu so
thuc va » thuc vat, thuc dan, thuc day
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
tuc va » truc va, tuc xa, duc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang mai hoi. hieu so kham ((tuc va) or (thuc va)) ((doan dieu) or (dang dieu)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang mai hoi. hieu so kham ((tuc va) OR (thuc va)) ((doan dieu) OR (dang dieu)) cua triet.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang mai hoi. hieu so kham ((tuc va) or (thuc va)) ((doan dieu) or (dang dieu)) cua triet*.