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