Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tuc dan cau snippets" » "tuc dan code snippets", "thuc dan cau snippets", "thuc day cau snippets", "tung dan cau snippets", "tuc danh cau snippets", "tuc dan ca snippets", "tuc dat 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: (((("tuc dan 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: (((("tuc dan cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tuc dan cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuc dan cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.