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