Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhung moi he snippets" » "nhung moi code snippets", "nhung loi he snippets", "nhung noi he snippets", "nhung doi he snippets", "nhung moi ve snippets", "nhung moi ke snippets", "nhung moi de 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: (((("nhung moi he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung moi he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhung moi he snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung moi he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.