Perhaps you should try some spelling variations:
manh hoi » manh hai, manh ho, manh hon
su triet » su viet, su tien, ve triet
su sach » so sach
vu sach » vu khach
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
ba manh » ha manh, van manh, day manh
ve cac » va cac, vien cac
dan ba » dan bac, dan ca, dan va
hoi su » hoi suc, khoi su, thoi su

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 (((vu sach) OR (vu bach)))) ky dang xa hoi. hieu ve cac dan ba manh hoi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (((vu sach) OR (vu bach)))) ky dang xa hoi. hieu ve cac dan ba manh hoi su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (((vu sach) OR (vu bach)))) ky dang xa hoi. hieu ve cac dan ba manh hoi su triet*".