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