Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong hoc my slippers" » "dong co my slippers", "dong luc my slippers", "dong hoc may slippers", "dong hoc ma slippers", "dong hoc ky slippers", "dong hoc my slippery", "dong hoc my 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 hoc my 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 hoc my slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong hoc my slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong hoc my slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.