Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam hoach du snippets" » "lam sach du snippets", "lam gach du snippets", "lam hoa du snippets", "lam hoach su snippets", "lam hoach de snippets", "lam hoach do 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 hoach du 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 hoach du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam hoach du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam hoach du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.