Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tieu danh de snippets" » "dieu danh de snippets", "tiep danh de snippets", "thien danh de snippets", "tieu hanh de snippets", "tieu dan de snippets", "tieu dang de 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 de 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 de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu danh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu danh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.