Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao thi chi snippets" » "cau thi chi snippets", "cao tai chi snippets", "dao thi chi snippets", "cao thai chi snippets", "cao thi choi 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: (((("cao thi 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: (((("cao thi chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao thi chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao thi chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.