Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho hoi dong snippets" » "cho hop dong snippets", "cho hoat dong snippets", "cho ha dong snippets", "cho hoc dong snippets", "cho moi dong snippets", "cho doi dong 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 hoi dong 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 hoi dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho hoi dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho hoi dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.