Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra cham den snippets" » "tra chat den snippets", "tri cham den snippets", "trang cham den snippets", "tra cham nen snippets", "tra thai den snippets", "tra chat deo 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 cham den 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 cham den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra cham den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra cham den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.