Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khat ha cao snippets" » "kham pha cao snippets", "chat hoa cao snippets", "khac hau cao snippets", "khat nha cao snippets", "khat va cao snippets", "khat ca cao 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: (((("khat ha 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: (((("khat ha cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khat ha cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khat ha cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.