Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh vai » thanh hai, thanh van, thanh tai
sach kem » hanh kem
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
vai cua » dai cua, hai cua, lai cua
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va, loc 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) OR (hieu van)) cac luc va thanh 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) OR (hieu van)) cac luc va thanh 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) OR (hieu van)) cac luc va thanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (cac ky)) nang ma hoi. ((hieu ve) OR (hieu van)) cac luc va thanh vai cua triet*.