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