Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trang cua » tranh cua, tang cua, thang cua
trung cua » truong cua, trung tuan, trung cap
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban
han tap » han tai, nhan tai, nhan tao

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 xanh - hanh ((trang cua) OR (trung cua)) phuong cong tan ((han tap) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((trang cua) OR (trung cua)) phuong cong tan ((han tap) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((trang cua) OR (trung cua)) phuong cong tan ((han tap) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((trang cua) OR (trung cua)) phuong cong tan ((han tap) or (toan tap))*.