Perhaps you should try some spelling variations:
cong luong » cong thuong, nang luong, cong dong
cong dung » cuong dung, cong dong, thong dung
tuyen tai » truyen tai, tuyen tap, xuyen tai
cac chu » cac thu, cac khu, ca chu
cac che » cac he, cac chien, cac chat
ban ve » ban va
y thi » ky thi, y thai, ly thi
ve y » ve ky, ve _, ke y

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tuyen tai ((cac chu) OR (cac che)) đe co ban ve y thi ((cong dung) or (cong luong))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tai ((cac chu) OR (cac che)) đe co ban ve y thi ((cong dung) OR (cong luong)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tuyen tai ((cac chu) OR (cac che)) đe co ban ve y thi ((cong dung) or (cong luong))".
• Adding a wildcard symbol may retrieve word variants: tuyen tai ((cac chu) OR (cac che)) đe co ban ve y thi ((cong dung) or (cong luong))*.