Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hap benh do snippets" » "hop benh do snippets", "kham benh do snippets", "phau benh do snippets", "hap benh dot snippets", "hap benh co snippets", "hap benh xo 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 benh do 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 benh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hap benh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap benh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.