Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"choi hee cau snippets" » "cho he cau snippets", "choi tre cau snippets", "khoi he cau snippets", "choi hien cau 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: (((("choi hee cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("choi hee cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( choi hee cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("choi hee cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.