Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban li can snippets" » "ban le can snippets", "ban i can snippets", "ban ii can snippets", "ban loi can snippets", "ban li ca snippets", "ban li yan 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: (((("ban li can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban li can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban li can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban li can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.