Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong cai du snippets" » "cong cau du snippets", "cong cac du snippets", "dong cac du snippets", "mong cac du snippets", "mong cai tu snippets", "mong tai 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: (((("mong cai 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: (((("mong cai du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong cai du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong cai du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.