Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap duc cong snippets" » "tap duc cuong snippets", "tap dung cong snippets", "tap nuoc cong snippets", "tap suc cong snippets", "tap tuc cong snippets", "tap luc 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: (((("tap duc 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: (((("tap duc cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap duc cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap duc cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.