Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao anh dong snippets" » "dao anh huong snippets", "dao anh son snippets", "dao hanh dong snippets", "dao danh dong snippets", "dao manh dong 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: (((("dao anh dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao anh dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao anh dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao anh dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.