Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day phan le snippets" » "dam phan le snippets", "duy phan le snippets", "dan phan le snippets", "day pham le snippets", "day phan mem snippets", "day 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: (((("day 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: (((("day phan le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day phan le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day phan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.