Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tuc di snippets" » "van thuc di snippets", "van tu di snippets", "van duc di snippets", "van tac di snippets", "van tuc de 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: (((("van tuc di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van tuc di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van tuc di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van tuc di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.