Perhaps you should try some spelling variations:
thanh moi » thanh loi, thanh hoa, thanh hai
khanh mai » hanh ma, hanh mau, hanh may
va triet » va thiet, va trien, ve triet
chat xuc » chat huu, cam xuc, chao xu
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ly hang » ly quang
ly vang » ly van, ly quang
ve chat » va chat, van chat
xuc xa » tuc xa, buc xa

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 ((ly vang) or (ly hang)) xa hoi. hieu ve chat xuc xa ((khanh mai) OR (thanh moi)) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly vang) OR (ly hang)) xa hoi. hieu ve chat xuc xa ((khanh mai) OR (thanh moi)) va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ly vang) or (ly hang)) xa hoi. hieu ve chat xuc xa ((khanh mai) OR (thanh moi)) va triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((ly vang) or (ly hang)) xa hoi. hieu ve chat xuc xa ((khanh mai) OR (thanh moi)) va triet*.