Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
van cau » van dau, van hau, van chat
cau tuc » cau truc, cau tu, cau luc
tuc ban » thuc ban, truc ban, tu ban
hanh ca » hanh cac, hanh cat, hanh cua
so sac » so sach, so dac
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ((ky lang) OR (ky dang)) xa hoi. thien van cau tuc ban hanh ca cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sac ((ky lang) OR (ky dang)) xa hoi. thien van cau tuc ban hanh ca cua triet".
• Adding a wildcard symbol may retrieve word variants: so sac ((ky lang) OR (ky dang)) xa hoi. thien van cau tuc ban hanh ca cua triet*.