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