Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ham dan hoc snippets" » "ham dan code snippets", "nam dan hoc snippets", "hat dan hoc snippets", "hai dan hoc snippets", "ham van hoc snippets", "ham dan toc snippets", "ham dai hoc 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 hoc 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 hoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( ham dan hoc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham dan hoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.