Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va han hon snippets" » "va han ho snippets", "va han lon snippets", "va hay hon snippets", "va phan hon snippets", "van han hon snippets", "va hanh hon 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 han hon 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 han hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va han hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va han hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.