Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
sanh ky » hanh ky, sang ky, nganh ky
cao hoi » co hoi, cao hoc, tao hoi
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, cac cuoc
dan va » doan va, dan ca, ban va
va cua » va chua, via cua, ca cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: do sanh ky nang ((cao hoi) OR (cau hoi)). hieu ve ((cac xuc) or (chat xuc)) cac dan va cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: do sanh ky nang ((cao hoi) OR (cau hoi)). hieu ve ((cac xuc) OR (chat xuc)) cac dan va cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "do sanh ky nang ((cao hoi) OR (cau hoi)). hieu ve ((cac xuc) or (chat xuc)) cac dan va cua tu".
• Adding a wildcard symbol may retrieve word variants: do sanh ky nang ((cao hoi) OR (cau hoi)). hieu ve ((cac xuc) or (chat xuc)) cac dan va cua tu*.