Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"do dung va slippers" » "do ung va slippers", "so dung va slippers", "do dang va slippers", "do dung va slippery", "do dung va grippers"
"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: (((("do dung va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do dung va slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( do dung va slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do dung va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.