Perhaps you should try some spelling variations:
"luong java java snippets" » "luong va java snippets"
"dong tai hoe snippets" » "dung tai hoe snippets", "luong tai hoe snippets", "cong tac hoe snippets", "dong tai he snippets", "dong tai khoa snippets", "dong thai hoc snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 tai hoe snippets") or ("luong java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tai hoe snippets") OR ("luong java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tai hoe snippets ) or ( luong java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tai hoe snippets") or ("luong java java snippets"))) or ("locating bug code snippets"))*.