Perhaps you should try some spelling variations:
truc nang » truc nano, tru nang, truc trang
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
ban thanh » ban hanh, ban hang
sach truc » cach thuc, sach tren, sach thu
so sach » so sanh, bo sach, co sach
tuc ban » thuc ban, truc ban, tu ban
ve cham » va cham, ve chat, vu cham
nang ma » tang ma, sang ma, nang cao
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cac, va cam, ve cai
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach truc nang ma hoi. hieu ((ve cam) OR (ve cham)) tuc ban thanh lap ((cua triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach truc nang ma hoi. hieu ((ve cam) OR (ve cham)) tuc ban thanh lap ((cua triet) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach truc nang ma hoi. hieu ((ve cam) OR (ve cham)) tuc ban thanh lap ((cua triet) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: so sach truc nang ma hoi. hieu ((ve cam) OR (ve cham)) tuc ban thanh lap ((cua triet) or (cuu tre))*.