Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang xay » dang van
hanh dao » lanh dao, thanh dat, thanh dam
van hanh » van thanh, ban hanh, van anh
hieu va » lieu va, hieu qua
cao luc » bao luc, cao duc, cao suc
luc van » luoc van, luu van, duc van
lang ha » long ha
dao cua » dai cua, day cua, dan cua
bai ky » ban ky, sai ky, bac ky
va cao » va cac, va co, va dao
tu bai » tu ban, tu bat, te bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu bai ky ((lang ha) or (((dang xay) OR (van xay)))) hoi. hieu va cao luc van hanh dao cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ky ((lang ha) OR (((dang xay) OR (van xay)))) hoi. hieu va cao luc van hanh dao cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu bai ky ((lang ha) or (((dang xay) OR (van xay)))) hoi. hieu va cao luc van hanh dao cua triet".
• Adding a wildcard symbol may retrieve word variants: tu bai ky ((lang ha) or (((dang xay) OR (van xay)))) hoi. hieu va cao luc van hanh dao cua triet*.