Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che tinh cu snippets" » "che kinh cu snippets", "he tinh cu snippets", "cha tinh cu snippets", "che tinh cua snippets", "che tinh cau snippets", "che dinh cu 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: (((("che tinh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che tinh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che tinh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che tinh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.