Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra thuc chi snippets" » "tri thuc chi snippets", "trang thuc chi snippets", "toan thuc chi snippets", "tra thuc chim snippets", "tra thuc thi snippets", "tra thu chi 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: (((("tra thuc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra thuc chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra thuc chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra thuc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.