Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc viec cho snippets" » "luc viet cho snippets", "duoc viec cho snippets", "luoc viet cho snippets", "luc viec khoa snippets", "luc viec nhom snippets", "luc viec cua 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: (((("luc viec 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: (((("luc viec cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc viec cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc viec cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.