Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van chi he snippets" » "van chi code snippets", "van chien he snippets", "luan chi he snippets", "van chat he snippets", "van chi ha snippets", "van chi hieu snippets", "van choi hee 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 chi he 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 chi he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van chi he snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van chi he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.