Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van cho du snippets" » "van cho code snippets", "van chi du snippets", "san cho du snippets", "van chat du snippets", "van cho cu snippets", "van cho tu snippets", "van cho duoc 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 cho 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 cho du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van cho du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van cho du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.