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