Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh loi » thanh hoa, thanh hai, thanh lap
hanh tai » thanh tai, hang tai, han tai
duc van » duc va, duc tan, duc manh
ve pham » vi pham, v pham, ve phan
te sach » toc sach
tu nano » truc nano
tu nang » tru nang, tu nong, tu lang
hieu ve » hieu va, hieu van
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((tu nang) OR (tu nano)) x hoi. hieu ve pham duc van ((thanh loi) or (hanh tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu nang) OR (tu nano)) x hoi. hieu ve pham duc van ((thanh loi) OR (hanh tai)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tu nang) OR (tu nano)) x hoi. hieu ve pham duc van ((thanh loi) or (hanh tai)) cua triet*".