Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"truan vo van slippers" » "truan doi van slippers", "tran vu van slippers", "than vo van slippers", "truan vo van slippery", "truan vo van 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: (((("truan vo van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truan vo van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truan vo van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truan vo van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.