Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don tinh cu snippets" » "doan tinh cu snippets", "dong tinh cu snippets", "den tinh cu snippets", "don tinh cua snippets", "don tinh cau snippets", "don 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: (((("don 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: (((("don tinh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don tinh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don tinh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.