Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van manh » van minh, van anh, van hanh
manh hoi » manh hai, manh ho, manh hon
su sach » so sach
vu sach » vu khach
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
cac van » cac dan
van van » van ban, tan van, san van
hoi cua » hoi chuc

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 va cac van van manh hoi cua 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 va cac van van manh hoi cua 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 va cac van van manh hoi cua triet*".