Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nam duoc » nam thuoc, da duoc, dat duoc
tinh ve » trinh ve, tinh ven, dinh ve
va tinh » may tinh
duoc va » nuoc va, duc va, duoc ma
su sach » so sach, vu sach
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
va nam » van nam, ha nam, va nay
ve cua » le cua, de cua, te cua

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 sanh) OR (do sanh)))) ky dang xa hoi. lieu va nam duoc va tinh ve cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (((so sanh) OR (do sanh)))) ky dang xa hoi. lieu va nam duoc va tinh ve cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (((so sanh) OR (do sanh)))) ky dang xa hoi. lieu va nam duoc va tinh ve cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (((so sanh) OR (do sanh)))) ky dang xa hoi. lieu va nam duoc va tinh ve cua triet*.