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