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