Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoa su cao snippets" » "hoa lu cao snippets", "hoa si cao snippets", "hoa du cao snippets", "hoa cu cao snippets", "hoa vu cao snippets", "hoa su 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: (((("hoa su cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoa su cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoa su cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoa su cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.