Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
doi chieu » doc hieu, doi chi, ho chieu
hanh manh » hanh mang, lanh manh, hoang manh
cua trong » cua truong, cua trung, ca trong
qua trong » quan trong, qua trinh, qua song
cong tac » cong ty
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - hanh manh ((cua trong) or (qua trong)) ((cong san) or (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - hanh manh ((cua trong) OR (qua trong)) ((cong san) OR (cong tac)) toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - hanh manh ((cua trong) or (qua trong)) ((cong san) or (cong tac)) toan cao*.