Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi cong rok snippets" » "tai cong rok snippets", "thien cong rok snippets", "thi cong hoa snippets", "thi cong so snippets", "thi hang rok 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 cong rok 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 cong rok snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi cong rok snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi cong rok snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.