Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tin kho slippers" » "thong tin kho slippers", "luong tin kho slippers", "dong kinh kho slippers", "dong tin khoa slippers", "dong ton kho slippers", "dong tin khi slippers", "dong tin kho slippery", "dong tin kho 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: (((("dong tin kho slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tin kho slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tin kho slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tin kho slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.