Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hien xanh » hien hanh, hien nhanh, chieu xanh
trang cua » tang cua, trung cua, thang cua
tranh cua » doanh cua, manh cua
thong van » trong van, thong va, thong quan
van tuan » van quan, van ban, anh tuan
tuan man » than man, tran manh, tuan minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (chieu sach)) - hanh ((trang cua) OR (tranh cua)) thong thong van tuan man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu sach)) - hanh ((trang cua) OR (tranh cua)) thong thong van tuan man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (chieu sach)) - hanh ((trang cua) OR (tranh cua)) thong thong van tuan man".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu sach)) - hanh ((trang cua) OR (tranh cua)) thong thong van tuan man*.