Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ham dan chi snippets" » "ham dan code snippets", "nam dan chi snippets", "hat dan chi snippets", "hai dan chi snippets", "ham danh chi snippets", "ham dan thi snippets", "ham van chi snippets"
"python using java snippets" » "python using data 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: (((("ham dan chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ham dan chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( ham dan chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham dan chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.