Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
theo yeu » theo tieu, thiet yeu, theo chu
yeu tinh » yeu tin, lieu tinh, kieu tinh
manh cua » doanh cua, ban cua
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo yeu tinh - hanh ((manh cua) or (trung tuan)) dung cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo yeu tinh - hanh ((manh cua) OR (trung tuan)) dung cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo yeu tinh - hanh ((manh cua) or (trung tuan)) dung cong tinh toan cau*.