Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van danh chi snippets" » "van danh code snippets", "van doanh chi snippets", "van anh chi snippets", "van hanh chi snippets", "van danh cho snippets", "van dinh chi snippets", "van banh 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: (((("van danh 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: (((("van danh chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van danh chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van danh chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.