Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuu hoc te snippets" » "cua hoc te snippets", "cuu thuoc te snippets", "cuu khoa te snippets", "cuu hoc tu snippets", "cuu hoc he 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: (((("cuu hoc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuu hoc te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuu hoc te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuu hoc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.