Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang mai » nang ma, nang tai, lang mai
thanh de » hanh de, thanh do, thanh le
thanh ve » hanh ve, thanh va, thanh vien
bach ky » bac ky
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ky nang mai hoi. hieu va pham duc va ((thanh de) OR (thanh ve)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu bach ky nang mai hoi. hieu va pham duc va ((thanh de) OR (thanh ve)) cua triet".
• Adding a wildcard symbol may retrieve word variants: vu bach ky nang mai hoi. hieu va pham duc va ((thanh de) OR (thanh ve)) cua triet*.