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