Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tue tinh ven snippets" » "thue tinh ven snippets", "tuyen tinh ven snippets", "thuy tinh ven snippets", "tue trinh ven snippets", "tue tinh yen snippets", "tue sinh vien snippets", "tue tinh ven slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("tue tinh ven snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tue tinh ven snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tue tinh ven snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tue tinh ven snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.