Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"data phan le snippets" » "dam phan le snippets", "sat phan le snippets", "vat phan le snippets", "data pham le snippets", "data phan mem snippets", "data phan lap 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: (((("data phan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data phan le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data phan le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data phan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.