Perhaps you should try some spelling variations:
thieu nien » thien nhien
cua triet » cua viet, su triet, va triet
nien coc » nien cong, vien cac, dien cuc
van hanh » van thanh, ban hanh, van ban
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
van anh » van thanh, tuan anh, van minh
vai cua » dai cua, hai cua, lai cua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((nang xa) or (lang xa)) hoi. thieu nien coc luc ((van hanh) OR (van anh)) vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((nang xa) OR (lang xa)) hoi. thieu nien coc luc ((van hanh) OR (van anh)) vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky ((nang xa) or (lang xa)) hoi. thieu nien coc luc ((van hanh) OR (van anh)) vai cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky ((nang xa) or (lang xa)) hoi. thieu nien coc luc ((van hanh) OR (van anh)) vai cua triet*.