Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao lieu voi snippets" » "dao lieu code snippets", "dao hieu voi snippets", "da lieu voi snippets", "dan lieu voi snippets", "dao lieu boi snippets", "dao lieu va snippets", "dao lieu hoc 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 lieu voi 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 lieu voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dao lieu voi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao lieu voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.