Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"san van co snippets" » "tan van co snippets", "luan van co snippets", "tran van co snippets", "san van cho snippets", "san ban co snippets", "san san 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: (((("san van co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("san van co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( san van co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("san van co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.