Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi danh chi snippets" » "thi danh code snippets", "thai danh chi snippets", "thi hanh chi snippets", "thi anh chi snippets", "thi danh cho snippets", "thi dinh chi snippets", "thi banh chi 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: (((("thi danh chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi danh chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi danh chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi danh chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.