Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van khuc cuc snippets" » "van phuc cuc snippets", "van thuc cuc snippets", "van phuoc cuc snippets", "van thuoc cuc snippets", "van chuc cuoc snippets", "van khac cuoc 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: (((("van khuc cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van khuc cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van khuc cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van khuc cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.