Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan qua ca snippets" » "dan quan ca snippets", "danh qua ca snippets", "dan quy ca snippets", "dan qua cac snippets", "dan qua cua snippets", "dan qua cai 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 ("dan qua 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 ("dan qua ca snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dan qua ca snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dan qua ca snippets"))) or ("locating bug code snippets"))*.