Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"mai ngoc lan snippets" » "ma ngoc lan snippets", "thi ngoc lan snippets", "van ngoc lan snippets", "mai ngoc tuan snippets", "mai nuoc luan snippets", "mai ngoc anh 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: (((("mai ngoc lan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mai ngoc lan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( mai ngoc lan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mai ngoc lan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.