Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tai le snippets" » "dung tai le snippets", "luong tai le snippets", "cong tac le snippets", "dong tri le snippets", "dong thi le snippets", "dong tai he 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: (((("dong tai le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tai le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tai le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tai le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.