Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao duc chi snippets" » "giao duc chi snippets", "tao duoc chi snippets", "dao du chi snippets", "dao duc thi snippets", "dao duc chien 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: (((("dao duc 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: (((("dao duc chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao duc chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao duc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.