Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than moi doi snippets" » "thanh moi doi snippets", "phan moi doi snippets", "than roi doi snippets", "than voi doi snippets", "than hoi doi snippets", "than moi voi 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: (((("than moi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than moi doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than moi doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than moi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.