Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
thuc va » thuc vat, thuc dan, thuc day
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
song xa » song cua
sang xa » lang xa, sang ma, mang xa
sac ky » cac ky, sai ky
dan vi » doan vi, don vi, dan va
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san

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 ((sang xa) OR (song xa)) hoi. hieu vu cham ((thuc va) or (tuc xa)) dan vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((sang xa) OR (song xa)) hoi. hieu vu cham ((thuc va) OR (tuc xa)) dan vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((sang xa) OR (song xa)) hoi. hieu vu cham ((thuc va) or (tuc xa)) dan vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((sang xa) OR (song xa)) hoi. hieu vu cham ((thuc va) or (tuc xa)) dan vi cua tre*.