Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vu khach » vu khanh, vu khac, vay khach
quoc ban » quoc bao, quoc lan, quoc quan
xuc ban » duc ban, cuc ban, xuat ban
su sach » so sach, vu sach
ve chat » va chat, van chat
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
vi cua » vai cua, di 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 (vu khach)) ky dang xa hoi. hieu ve chat ((xuc ban) or (quoc ban)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu khach)) ky dang xa hoi. hieu ve chat ((xuc ban) OR (quoc ban)) hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu khach)) ky dang xa hoi. hieu ve chat ((xuc ban) or (quoc ban)) hanh vi cua triet*.