Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao tinh cau snippets" » "dao tinh code snippets", "dac tinh cau snippets", "dao minh cau snippets", "dao dinh cau snippets", "dao trinh cau snippets", "dao tinh cao snippets", "dao sinh cau 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: (((("dao tinh cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao tinh cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dao tinh cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao tinh cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.