Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cau phuc » cau truc, chau phu, huu phuc
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
tai cua » thai cua, tai cuc, tri cua
cau luc » cau truc
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te bai » te bao, te ban, te lai

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

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