Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao tinh he snippets" » "tao trinh he snippets", "dao tinh he snippets", "tho tinh he snippets", "tao tinh ha snippets", "tao tich 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: (((("tao tinh 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: (((("tao tinh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao tinh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao tinh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.