Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
xach tay » canh tay
hanh dai » hanh tai, hanh dao, vanh dai
van hanh » van thanh, ban hanh, van anh
sach thu » sach thue, sach thieu, sach tham
cao suc » cao su, cao duc
cao tuc » dao tuc, cao duc, cao toc
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((xach tay) or (sach thu)) nang xa hoi. hieu va ((cao tuc) OR (cao suc)) van hanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((xach tay) OR (sach thu)) nang xa hoi. hieu va ((cao tuc) OR (cao suc)) van hanh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((xach tay) or (sach thu)) nang xa hoi. hieu va ((cao tuc) OR (cao suc)) van hanh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: te ((xach tay) or (sach thu)) nang xa hoi. hieu va ((cao tuc) OR (cao suc)) van hanh dai cua triet*.