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