Perhaps you should try some spelling variations:
trong dong » trong cong, trong nong, trong dang
hanh trung » thanh trung, hanh trang, manh trung
dong thanh » truong thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
cua trong » cua truong, cua trung, qua trong
hoc hieu » hoc thieu, hoc hien, doc hieu
phan dau » phan tu, hang dau
phan cac » nhan cach, phan lap, phan van

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 manh - hanh trung cua trong dong thanh ((phan dau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh trung cua trong dong thanh ((phan dau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trung cua trong dong thanh ((phan dau) or (phan cac))*.