Perhaps you should try some spelling variations:
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
tung hon » tung ho, dung hon, nung hon
hon hang » hoc hang, hon hanh, hon nang
toan cao » toan tap
toan ban » van ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (doi chi)) xanh - thanh tung hon hang cong trinh ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chi)) xanh - thanh tung hon hang cong trinh ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chi)) xanh - thanh tung hon hang cong trinh ((toan cao) or (toan ban))*.