Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
cua triet » cua viet, su triet, va triet
vu khach » vu khanh, vu khac, vay khach
vu sach » vu bach, su sach
lang xa » lang ha, dang xay, lang van
qua cac » cua cac
cac ban » cac van, can ban, cac bai
lap cua » lai cua, tap cua, lam cua
y lang » o lang, _ lang, tay lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (vu khach)) y lang xa hoi. hieu qua cac ((cac ban) or (cac dan)) thanh lap cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) y lang xa hoi. hieu qua cac ((cac ban) OR (cac dan)) thanh lap cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu khach)) y lang xa hoi. hieu qua cac ((cac ban) or (cac dan)) thanh lap cua triet".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu khach)) y lang xa hoi. hieu qua cac ((cac ban) or (cac dan)) thanh lap cua triet*.