Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi xuan cho snippets" » "thi xa cho snippets", "thi lan cho snippets", "thi xuan ho snippets", "thi xuan co snippets", "thi khuan cho 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 xuan cho 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 xuan cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi xuan cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi xuan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.