Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao du chi snippets" » "dao du code snippets", "dao duc chi snippets", "dao duy chi snippets", "dao do chi snippets", "dao dau chi snippets", "dao cu chi snippets", "dao di chi snippets"
"python using java snippets" » "python using data 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 du chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao du chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dao du chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao du chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.