Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong vi thi slippers" » "dong voi thi slippers", "dong va thi slippers", "don vi thi slippers", "dong vu thi slippers", "dong vo thi slippers", "dong vi thi slippery", "dong vi thi 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 vi thi 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 vi thi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong vi thi slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong vi thi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.