Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
lanh manh » lanh tranh, lan anh, van manh
cua thong » cua thuong, cua khong, cua tong
theo chu » theo chieu, cho chu, chao chu
manh cua » doanh cua, ban cua
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan dau » phan tu, hang dau

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 (theo chu)) xanh - lanh manh cua thong cong tac phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) xanh - lanh manh cua thong cong tac phan dau.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) xanh - lanh manh cua thong cong tac phan dau*.