Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu dich le snippets" » "thu tich le snippets", "chu dich le snippets", "thu ich le snippets", "thu dich te snippets", "thu dinh le snippets", "thu dich ly 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: (((("thu dich le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu dich le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu dich le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu dich le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.