Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hap qua cu snippets" » "hai qua cu snippets", "phap quan cu snippets", "phap quay cu snippets", "hap qua cua snippets", "hap qua su snippets", "hap qua ca 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: (((("hap qua cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hap qua cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hap qua cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap qua cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.