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