Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tinh xach du snippets" » "tinh cach du snippets", "tinh mach du snippets", "trinh mach du snippets", "tinh sach dau snippets", "tinh cach dua snippets", "tinh hoach du 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: (((("tinh xach 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: (((("tinh xach du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tinh xach du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tinh xach du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.