Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kieu khac de snippets" » "dieu khac de snippets", "kieu khac di snippets", "kieu khac do snippets", "kieu hac de 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: (((("kieu khac de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kieu khac de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kieu khac de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kieu khac de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.