Perhaps you should try some spelling variations:
thanh lanh » thanh anh, thanh lan, thanh thanh
cua triet » cua viet, su triet, va triet
tan lanh » tai lanh, tan thanh, tang hanh
cac duc » cac du, cao duc, cac dac
hai cua » thai cua, dai cua, hoi cua
su sach » vu sach
hieu ve » hieu va, hieu van
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
so sach » so sanh, bo sach, co sach
ve cac » va cac, vien cac

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