Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao do cham snippets" » "dao co cham snippets", "dao do ham snippets", "dao toc cham snippets", "dao o cham snippets", "dao ho cham snippets", "dao dong cham 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 do cham 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 do cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao do cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao do cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.