Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chuc cho hoc snippets" » "chuc cuoc hoc snippets", "chuc theo hoc snippets", "chung cho hoc snippets", "chuc co hoc snippets", "chuc khoa 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: (((("chuc cho 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: (((("chuc cho hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chuc cho hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chuc cho hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.