Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam tu choi snippets" » "dam su choi snippets", "dam tu chi snippets", "dam tu chon snippets", "nam tu choi snippets", "cam tu choi snippets", "tam tu choi 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: (((("dam tu choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dam tu choi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam tu choi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam tu choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.