Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi dinh cu snippets" » "do dinh cu snippets", "doi kinh cu snippets", "doi tinh cu snippets", "doi dinh cuu snippets", "doi dinh chuc snippets", "doi dinh chau snippets"
"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: (((("doi dinh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi dinh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi dinh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi dinh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.