Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh khi do snippets" » "trinh khi code snippets", "trinh khai do snippets", "trinh khoi do snippets", "trinh thi do snippets", "trinh khi doi snippets", "trinh khi co snippets", "trinh khi 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: (((("python using java snippets") or ("trinh khi do snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("trinh khi do snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( trinh khi do snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("trinh khi do snippets"))) or ("locating bug core snippets"))*.