Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu hien chi snippets" » "thuc hien chi snippets", "thi hien chi snippets", "thua thien chi snippets", "thu hieu chi snippets", "thu kien chi snippets", "thu trien chi 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 hien chi 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 hien chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu hien chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu hien chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.