Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
dung cong » dung trong
tac thanh » bac thanh, cac thanh, tcc thanh
thanh cao » thanh ca, thanh cac, thanh thao
khan cua » nhan cua, than cua, han cua
cong tac » cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - hanh ((chung cu) or (khan cua)) dung cong tac thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh ((chung cu) OR (khan cua)) dung cong tac thanh cao.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh ((chung cu) or (khan cua)) dung cong tac thanh cao*.