Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang mao can snippets" » "hoang mai can snippets", "hang giao can snippets", "hang va can snippets", "hang mao van snippets", "hang mao con snippets", "hang mat can 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: (((("hang mao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang mao can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang mao can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang mao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.