Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap dan cung snippets" » "lap dan dung snippets", "lap dan vung snippets", "lap ban cung snippets", "lap dat cung snippets", "hap dan cung snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("lap dan cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lap dan cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap dan cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap dan cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.