Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"man va do snippets" » "mang va do snippets", "manh va do snippets", "ban va do snippets", "man va dao snippets", "man va doc snippets", "man va co 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: (((("man va 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: (((("man va do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( man va do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("man va do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.