Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thong cong » trong cong, tong cong, thong thong
tang luan » dung luan
trinh han » trinh quan
doc hieu » toc thieu, hoc thieu, hoc hien
tang cua » mang cua, hang cua, thong cua
han ban » hang ban, van ban, can ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (doc hieu)) xanh - anh ((tang cua) or (tang luan)) thong cong trinh han ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doc hieu)) xanh - anh ((tang cua) OR (tang luan)) thong cong trinh han ban.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doc hieu)) xanh - anh ((tang cua) or (tang luan)) thong cong trinh han ban*.