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