Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong so van slippers" » "cong so van slippers", "cuong vo van slippers", "tuong so van slippers", "cuong su van slippers", "cuong so van slippery", "cuong so 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: (((("cuong so 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: (((("cuong so van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong so van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong so van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.