Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doc dat ngoc snippets" » "doc dat nuoc snippets", "doc dau ngoc snippets", "doc dang ngoc snippets", "duoc dat ngoc snippets", "hoc dat ngoc snippets", "doc dao ngoc 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: (((("doc dat ngoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc dat ngoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doc dat ngoc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc dat ngoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.