Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van luc do snippets" » "van luc code snippets", "van loc do snippets", "van duc do snippets", "van lu do snippets", "van luc doi snippets", "van muc do snippets", "van cuc do 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 luc do 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 luc do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van luc do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van luc do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.