Perhaps you should try some spelling variations:
truong cua » truong quan, truong cao, huong cua
nhung cong » dung cong, thong cong, hang cong
hieu cach » hieu cac, chieu sach, biet cach
truong ca » truong cao, truong va, trong ca
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau
hieu ca » hieu cac, hieu cua, hieu va

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) OR (hieu ca)) - thanh ((truong cua) or (truong ca)) nhung cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu cach) OR (hieu ca)) - thanh ((truong cua) OR (truong ca)) nhung cong dan chan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu cach) OR (hieu ca)) - thanh ((truong cua) or (truong ca)) nhung cong dan chan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu cach) OR (hieu ca)) - thanh ((truong cua) or (truong ca)) nhung cong dan chan cau*.