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