Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam banh do snippets" » "lam ban do snippets", "lam lanh do snippets", "pham banh do snippets", "lam benh do snippets", "lam lanh dao 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: (((("lam banh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam banh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam banh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam banh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.