Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van doanh du snippets" » "van doanh code snippets", "toan doanh du snippets", "van dong du snippets", "van thanh du snippets", "van danh du snippets", "van doanh duoc snippets", "van doanh thu 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 doanh du 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 doanh du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van doanh du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van doanh du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.