Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cua trinh he snippets" » "cua trinh code snippets", "qua trinh he snippets", "cua tinh he snippets", "xuan trinh he snippets", "cua trinh han snippets", "cua trinh hoa snippets", "cua trinh ky 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 ("cua trinh he snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cua trinh he snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cua trinh he snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cua trinh he snippets"))) or ("locating bug core snippets"))*.