Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu sang » chieu sach, chieu xanh, hieu lang
ho chieu » theo chieu, hoc thieu, doi chieu
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong thanh
than vao » than va, than vo, than sao
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - hanh ((tang cua) or (mang cua)) thong cong tan ((than vao) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh ((tang cua) OR (mang cua)) thong cong tan ((than vao) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh ((tang cua) or (mang cua)) thong cong tan ((than vao) or (than cap))*.