Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam lan choi snippets" » "dam lan cho snippets", "dam lan cuoi snippets", "dam len choi snippets", "dam van choi snippets", "dam phan choi snippets", "pham lan 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 lan 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 lan choi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam lan choi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam lan choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.