Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc tang cua snippets" » "luc tang code snippets", "tuc tang cua snippets", "luc sang cua snippets", "duc tang cua snippets", "luc mang cua snippets", "luc hang cua snippets", "luc tang luan 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: (((("python using java snippets") or ("luc tang cua snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("luc tang cua snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( luc tang cua snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("luc tang cua snippets"))) or ("locating bug core snippets"))*.