Perhaps you should try some spelling variations:
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
hieu cach » hieu cac, chieu sach, hieu ca
trung cua » trung tuan, trung cap, dung cua
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu cach - thanh ((trung cua) or (truong cua)) nhung cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - thanh ((trung cua) OR (truong cua)) nhung cong dan chan cau*.