Perhaps you should try some spelling variations:
"locatinhg bug code snippets" » "locating bug code snippets", "locatinhg bug core snippets"
"python using java snippets" » "python using data snippets"
"van du can snippets" » "van duy can snippets", "van dau can snippets", "van de can snippets", "van su can snippets", "van tu can snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van du can snippets") OR ("python using java snippets"))) OR ("locatinhg bug code snippets"))~.
• Removing quotes may allow a broader search: (((( van du can snippets ) or ( python using java snippets ))) or ( locatinhg bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van du can snippets") or ("python using java snippets"))) or ("locatinhg bug code snippets"))*.