Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao tinh he snippets" » "dac tinh he snippets", "dao minh he snippets", "dao dinh he snippets", "dao trinh he snippets", "dao tinh ha snippets", "dao tich he 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 ("dao tinh he snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dao tinh he snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dao tinh he snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dao tinh he snippets"))) or ("locating bug code snippets"))*.