Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi lan 11 slippers" » "thi hanh 11 slippers", "thi nang 11 slippers", "thi lien 11 slippers", "thi lan 11 slippery", "thi lan 11 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: (((("thi lan 11 slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi lan 11 slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi lan 11 slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi lan 11 slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.