Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho mang du snippets" » "cho hang du snippets", "cho lang du snippets", "cho nang du snippets", "cho mang dau snippets", "cho tang du 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 mang du 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 mang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho mang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho mang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.