Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh hoi » danh hoa, dan hoi, danh hoc
xa danh » va danh, dia danh, nam danh
nang ma » tang ma, nang cao, mang may
cua tre » cua te, cuu tre, dua tren
sang ma » tang ma, sang tao, mang may
hieu ve » hieu va, hieu van
tu sac » tu sach, tu cac, tu san
cac tu » cac thu, cach tu, cac du
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
tu xa » tu xay, tu va, te xa

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 ((nang ma) OR (sang ma)) hoi. hieu ve cac tu xa danh hoi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang ma) OR (sang ma)) hoi. hieu ve cac tu xa danh hoi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((nang ma) OR (sang ma)) hoi. hieu ve cac tu xa danh hoi ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang ma) OR (sang ma)) hoi. hieu ve cac tu xa danh hoi ((cua tre) or (cua triet))*.