Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den sinh cu snippets" » "den tinh cu snippets", "men sinh cu snippets", "dang sinh cu snippets", "den sinh cua snippets", "den sinh cau snippets", "den sinh cuc 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: (((("den sinh 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: (((("den sinh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den sinh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den sinh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.