Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh doi » trinh doc, trinh do, tinh hoc
doi cua » dai cua, hoi cua
va tinh » may tinh
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
ma hoi » xa hoi, ma hoa, me hoi
va cam » va cham, va cac, va cao
cam tu » cam thu, nam tu, dam tu
ve cac » va cac, vien cac
te cac » tu cac, te cao, de cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) OR (ve cac)) ky nang ((ma hoi) or (mai hoi)). hieu va cam tu va tinh doi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky nang ((ma hoi) OR (mai hoi)). hieu va cam tu va tinh doi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) OR (ve cac)) ky nang ((ma hoi) or (mai hoi)). hieu va cam tu va tinh doi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te cac) OR (ve cac)) ky nang ((ma hoi) or (mai hoi)). hieu va cam tu va tinh doi cua triet*.