Perhaps you should try some spelling variations:
dau tieng » dau tien, cau tieng, day tieng
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
su sach » so sach, vu sach
hang xa » hoang xa, hang va, hang ca
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, dua tren
y hang » ly hang, ty hang, yu hang
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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 y hang xa hoi. hieu ve cam xuc va hanh lai ((((cua tre) or (cua triet))) or (dau tieng))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y hang xa hoi. hieu ve cam xuc va hanh lai ((((cua tre) OR (cua triet))) OR (dau tieng)).
• Adding a wildcard symbol may retrieve word variants: su sach y hang xa hoi. hieu ve cam xuc va hanh lai ((((cua tre) or (cua triet))) or (dau tieng))*.