Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hap ban cho snippets" » "lap ban cho snippets", "hap dan cho snippets", "nhat ban cho snippets", "hap ban cheo snippets", "hap bang cho snippets", "hap ban co 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 ban cho 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 ban cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hap ban cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap ban cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.