Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"may dung co snippets" » "may duong co snippets", "xay dung co snippets", "mai dung co snippets", "may dung cho snippets", "may dung cong snippets", "may dung cua 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: (((("may dung 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: (((("may dung co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( may dung co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("may dung co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.