Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hong tom snippets" » "thi cong tom snippets", "thi phuong tom snippets", "thi hanh tom snippets", "thi huong toi snippets", "thi hong tham snippets", "thi hong tuoi 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: (((("thi hong tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi hong tom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hong tom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hong tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.