Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong va 03 slippers" » "trong van 03 slippers", "trong ca 03 slippers", "trong cac 03 slippers", "trong va 03 slippery", "trong va 03 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: (((("trong va 03 slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong va 03 slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong va 03 slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong va 03 slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.