Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh vai » tinh va, tinh hai, tinh bai
sach kem » hanh kem
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ve cac » va cac, vien cac
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va
loc va » hoc va

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 kem) or (cac ky)) nang ma hoi. hieu ve cac ((luc va) OR (loc va)) tinh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (cac ky)) nang ma hoi. hieu ve cac ((luc va) OR (loc va)) tinh vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach kem) or (cac ky)) nang ma hoi. hieu ve cac ((luc va) OR (loc va)) tinh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (cac ky)) nang ma hoi. hieu ve cac ((luc va) OR (loc va)) tinh vai cua triet*.