Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong xa can snippets" » "duong va can snippets", "duong ma can snippets", "dong xa can snippets", "duong xa cao snippets", "duong xa ban snippets", "duong xa tan 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: (((("duong xa 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: (((("duong xa can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong xa can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong xa can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.