Perhaps you should try some spelling variations:
duong trong » dung trong
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh tran » canh tranh, hanh trang, banh trang
van duong » van dong, van dung, van phong
trong dan » trong dang, trong san, trong tan
tran van » luan van
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu manh) or (chieu tinh)) - canh tran van duong trong dan ((phan lap) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu tinh)) - canh tran van duong trong dan ((phan lap) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chieu tinh)) - canh tran van duong trong dan ((phan lap) or (phan tu))*.