Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam san cong snippets" » "dam sang cong snippets", "dam van cong snippets", "dam ban cong snippets", "lam san cong snippets", "dac san 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 san 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 san cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam san cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam san cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.