Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban tham chi snippets" » "ban than chi snippets", "van tham chi snippets", "ban ham chi snippets", "ban pham chi snippets", "ban thai chi snippets", "ban nam chi 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: (((("ban tham chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban tham chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban tham chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban tham chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.