Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tieu danh he snippets" » "dieu danh he snippets", "tiep danh he snippets", "thien danh he snippets", "tieu danh het snippets", "tieu dan he snippets", "tieu hanh 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: (((("tieu danh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tieu danh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu danh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu danh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.