Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong thi tue snippets" » "dong thi code snippets", "duong thi tue snippets", "dang thi tue snippets", "dong tai tue snippets", "dong tri tue snippets", "dong thi hue snippets", "dong thi tu 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: (((("dong thi tue snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong thi tue snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong thi tue snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong thi tue snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.