Perhaps you should try some spelling variations:
thanh gian » thanh giang, thach giang, thanh san
cua triet » cua viet, su triet, va triet
minh giao » trinh giao, tinh gia, dinh gia
duc van » duc va, duc tan, duc manh
thu sac » thu sach, thu san, thu xac
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky nang ((x hoi) or (xa hoi)). hieu ve cac duc van ((thanh gian) or (minh giao)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang ((x hoi) OR (xa hoi)). hieu ve cac duc van ((thanh gian) OR (minh giao)) cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang ((x hoi) or (xa hoi)). hieu ve cac duc van ((thanh gian) or (minh giao)) cua triet*.