Perhaps you should try some spelling variations:
thieu bien » thieu nien, tieu bieu, hien bien
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
hanh han » hanh nhan, hanh phan, hanh san
qua dung » quang dung, su dung, qua song
toan ban » van ban
han qua » hanh qua, hai qua, han cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thieu bien) or (theo tieu)) tinh - hanh han qua dung cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thieu bien) OR (theo tieu)) tinh - hanh han qua dung cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: ((thieu bien) or (theo tieu)) tinh - hanh han qua dung cong tinh toan ban*.