Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh bai » tinh bac, tinh hai, hinh bai
tinh vai » tinh va, tinh hai, tinh lai
sach ky » sac ky, sach ty, sach kem
cuc ban » cua ban, cac ban, cuu ban
hieu ve » hieu va, hieu van
dang xa » dang xay, lang xa, dang ha
cam cuc » cam xuc, cham cuu, pham cuc
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (sach y)) dang xa hoi. hieu ve cam cuc ban ((tinh vai) OR (tinh bai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) dang xa hoi. hieu ve cam cuc ban ((tinh vai) OR (tinh bai)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sach y)) dang xa hoi. hieu ve cam cuc ban ((tinh vai) OR (tinh bai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) dang xa hoi. hieu ve cam cuc ban ((tinh vai) OR (tinh bai)) cua triet*.