Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thai cua den snippets" » "than cua den snippets", "tai cuc den snippets", "tri cua den snippets", "thai cua dan snippets", "thai cua nen snippets", "thai cua dang 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: (((("thai cua den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thai cua den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thai cua den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thai cua den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.