Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van thi chu snippets" » "van thi code snippets", "van tai chu snippets", "dan thi chu snippets", "van thu chu snippets", "van thi chau snippets", "van thi thu snippets", "van thi nhu 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: (((("van thi chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van thi chu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van thi chu snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van thi chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.