Perhaps you should try some spelling variations:
cong luong » cong thuong, nang luong, cong dong
tuyen tai » truyen tai, tuyen tap, xuyen tai
cac kieu » cach tieu, cac yeu, tac kiem
cac khu » cac thu, cac khoi
cac che » cac he, cac chien, cac chat
ban ve » ban va
ky thu » ly thu, ky thi, ky thuat
ve ky » va ky, ke ky

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 khu) or (cac kieu))) or (cac che)) đe co ban ve ky thu cong luong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tai ((((cac khu) OR (cac kieu))) OR (cac che)) đe co ban ve ky thu cong luong.
• Adding a wildcard symbol may retrieve word variants: tuyen tai ((((cac khu) or (cac kieu))) or (cac che)) đe co ban ve ky thu cong luong*.