Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuu day hoc snippets" » "cuu dac hoc snippets", "cuu xay hoc snippets", "cuu da hoc snippets", "cuu dai hoc snippets", "cuu dan hoc 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 day hoc 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 day hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuu day hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuu day hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.