Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh de » hanh ve, hanh kem
hanh di » hanh vi, hang di, danh di
tu sai » tu bai, tu san, tu cai
tu van » tu va
sai ky » sac ky
cam tu » cam thu, nam tu, dam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang xa hoi. ((hieu ve) or (hieu qua)) cam tu van ((hanh di) OR (hanh de)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang xa hoi. ((hieu ve) OR (hieu qua)) cam tu van ((hanh di) OR (hanh de)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang xa hoi. ((hieu ve) or (hieu qua)) cam tu van ((hanh di) OR (hanh de)) cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang xa hoi. ((hieu ve) or (hieu qua)) cam tu van ((hanh di) OR (hanh de)) cua triet*.