Perhaps you should try some spelling variations:
ve triet » va trien, su triet
lanh hai » manh hai, thanh hai, lang chai
cua tre » cua te, cuu tre, cua triet
va lanh » va lang, va danh, va hanh
cam duc » cam xuc, cao duc, pham duc
tu sach » thu sach, te sach, tu cach
hieu ve » hieu va, hieu van
mang xa » lang xa, mang may, dang xay
ty mang » ty xang, ty hang, tin mang
su sach » so sach, vu sach
ve cam » ve cham, ve cac, va cam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty mang xa hoi. hieu ve cam duc va lanh hai ((cua tre) OR (ve triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ty mang xa hoi. hieu ve cam duc va lanh hai ((cua tre) or (ve triet))~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ty mang xa hoi. hieu ve cam duc va lanh hai ((cua tre) or (ve triet))*.