Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van anh cha snippets" » "van anh code snippets", "van thanh cha snippets", "van minh cha snippets", "tuan anh cha snippets", "van canh cha snippets", "van anh ha snippets", "van anh ca 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 anh cha 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 anh cha snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van anh cha snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van anh cha snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.