Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"from van chu snippets" » "from vat chu snippets", "from cane chu snippets", "from veno chu snippets", "from van chi snippets", "from van phu snippets", "from van cau 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: (((("from van chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("from van chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( from van chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("from van chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.