Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam len cong snippets" » "dam den cong snippets", "dam le cong snippets", "dam len con snippets", "dam lan cong snippets", "dau len cong snippets", "dam tien 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: (((("dam len cong 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 len cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam len cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam len cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.