Perhaps you should try some spelling variations:
hanh diem » thanh liem, chanh niem, khanh kiem
hanh dieu » han dieu, hinh dieu, hoang dieu
hieu van » hieu va, thien van, lieu va
dang mai » dang hai, dang mau, dang bai
cham cuu » cap cuu, chat cua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va
mai hoi » mai khoi, dai hoi, lai hoi
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
cuu va » cuu van, cuu ve
te sac » te sach, te cac, te san

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 dang mai hoi. ((hieu ve) or (hieu van)) cham cuu va ((hanh diem) OR (hanh dieu)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang mai hoi. ((hieu ve) OR (hieu van)) cham cuu va ((hanh diem) OR (hanh dieu)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky dang mai hoi. ((hieu ve) or (hieu van)) cham cuu va ((hanh diem) OR (hanh dieu)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky dang mai hoi. ((hieu ve) or (hieu van)) cham cuu va ((hanh diem) OR (hanh dieu)) cua tre*.