Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
cua triet » cua viet, su triet, va triet
quan cau » quang cao, toan cau, quan ha
va thanh » gia thanh, ban thanh, va tinh
thanh di » thanh doi, thanh de, thanh do
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty quan » te quan, ly quan, tu quan
nam xuc » cam xuc, nam xua, nam thuc
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty quan cau hoi. ((trien quang) or (hieu qua)) nam xuc va thanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty quan cau hoi. ((trien quang) OR (hieu qua)) nam xuc va thanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ty quan cau hoi. ((trien quang) or (hieu qua)) nam xuc va thanh di cua triet*.