Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao doanh cu snippets" » "cao doanh cu snippets", "dao danh cu snippets", "dao thanh cu snippets", "dao doanh cua snippets", "dao doanh chu snippets", "dao doanh co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 doanh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao doanh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao doanh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao doanh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.