Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc viet cua snippets" » "toc viet code snippets", "hoc viet cua snippets", "thuc viet cua snippets", "ngoc viet cua snippets", "toc viec cua snippets", "toc viet ca snippets", "toc viet qua 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 ("toc viet cua snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("toc viet cua snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( toc viet cua snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("toc viet cua snippets"))) or ("locating bug core snippets"))*.