Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sinh moi con snippets" » "dinh moi con snippets", "sinh khoi con snippets", "sinh hoc con snippets", "sinh moi cong snippets", "sinh moi co snippets", "sinh mot con 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: (((("sinh moi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sinh moi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sinh moi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sinh moi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.