Perhaps you should try some spelling variations:
trung long » truong long, trung uong, trong long
doan trung » do trung, dac trung, xuan trung
hanh mang » nhanh mang, hanh trang, nhanh lang
mang doan » hang doanh, quang doan, trang doan
hoc kien » hoc hien, hoc vien, hoa kien
kien mac » dien mao, tien mai, kien ha
long sat » cong suat, long span, luong san
nhan lap » thanh lap, nhan loai, nhan luan
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc kien mac - hanh mang doan trung long sat ((nhan lap) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc kien mac - hanh mang doan trung long sat ((nhan lap) OR (phan lap))*.