Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh hoc te snippets" » "trinh hoa te snippets", "tinh hoc te snippets", "trinh hoi te snippets", "trinh hoc tu snippets", "trinh hoc he 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: (((("trinh hoc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh hoc te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh hoc te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh hoc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.