Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
khoa hoi » khoan hoi, khoa hoc, khoa doi
tinh lai » tinh lao, tinh hai, minh lai
ky lang » ky nang, ky dang, ky tang
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
va tinh » may tinh
su sac » su sach, su xac
su cac » tu cac, su cao, su can
ha hoi » hoa hoi, ha noi, xa hoi
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) or (su cac)) ky lang ((ha hoi) or (khoa hoi)). hieu ve cac duc va tinh lai chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su cac)) ky lang ((ha hoi) OR (khoa hoi)). hieu ve cac duc va tinh lai chau triet.
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su cac)) ky lang ((ha hoi) or (khoa hoi)). hieu ve cac duc va tinh lai chau triet*.