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