Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cuu ban » cuu van, cua ban, cuu san
cua tre » cua te, cuu tre, dua tren
tinh vi » trinh vi, tinh voi, tinh va
tu sach » thu sach, su sach, te sach
cuc ban » cua ban, cac ban, duc ban
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
y lang » o lang, _ lang, tay lang
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 y lang xa hoi. hieu ve cam ((cuc ban) or (cuu ban)) tinh vi ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang xa hoi. hieu ve cam ((cuc ban) OR (cuu ban)) tinh vi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y lang xa hoi. hieu ve cam ((cuc ban) or (cuu ban)) tinh vi ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach y lang xa hoi. hieu ve cam ((cuc ban) or (cuu ban)) tinh vi ((cua tre) OR (cua triet))*.