Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"van cau oc snippets" » "van dau oc snippets", "van hau oc snippets", "van chat oc snippets", "van cau hoc snippets", "van cau o snippets", "van cao oc snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"van cau oc snippets\") OR (\"python using java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( van cau oc snippets ) OR ( python using java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van cau oc snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))*.