Perhaps you should try some spelling variations:
khong trong » khoang trong, thong trong, phong trong
thanh trung » thanh tung
hieu cach » hieu cac, chieu sach, hieu ca
trung hua » trung ha, trung hoa, trung cua
hua khong » hoa khong, cua khong, hoac khong
trong anh » truong anh, trong nganh, trong doanh
hoc hieu » hoc thieu, hoc hien, doc hieu
tuan cau » toan cau, quan cau, tuan cu

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 hua khong trong anh tuan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - thanh trung hua khong trong anh tuan cau*.