Perhaps you should try some spelling variations:
tran thanh » ban thanh, van thanh, quan thanh
cua triet » cua viet, va triet
thanh lai » thanh hai, thanh lap, thanh loi
thu sach » tu sach, thuat sach, thuoc sach
duc tran » duc tan, duc toan, duc tren
su triet » su viet, su tien, ve triet
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
va cam » va cham, va cao, va 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: thu sach y nang ma hoi. lieu ((va cam) or (va cac)) duc tran thanh lai ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang ma hoi. lieu ((va cam) OR (va cac)) duc tran thanh lai ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang ma hoi. lieu ((va cam) or (va cac)) duc tran thanh lai ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang ma hoi. lieu ((va cam) or (va cac)) duc tran thanh lai ((cua triet) OR (su triet))*.