Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong cao va slippers" » "duong cao va slippers", "dong co va slippers", "dong cho va slippers", "dong cao van slippers", "dong tao va slippers", "dong cao va slippery", "dong cao 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: (((("dong cao 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: (((("dong cao va slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cao va slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cao va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.