Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, doanh tai
hanh tai » hang tai, han tai, hinh tai
tang xa » trang xa, tang ma, tang ha
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
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: su sac ky ((tang xa) OR (lang xa)) hoi. hieu ve cam duc ban ((hanh tai) or (thanh tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((tang xa) OR (lang xa)) hoi. hieu ve cam duc ban ((hanh tai) OR (thanh tai)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky ((tang xa) OR (lang xa)) hoi. hieu ve cam duc ban ((hanh tai) or (thanh tai)) cua triet*".