Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
quang tuan » quang thanh, quan luan, quang cua
hoc thieu » toc thieu, hoc hien
hung tuan » hung tran, trung tuan, hung thang
cuong tap » cong tac, luong tai, cong tan
luong tap » luong tai, luong tham, luong thai
toan tap » toan ban

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 - manh ((hung tuan) or (quang tuan)) dung ((cuong tap) OR (luong tap)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - manh ((hung tuan) OR (quang tuan)) dung ((cuong tap) OR (luong tap)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - manh ((hung tuan) or (quang tuan)) dung ((cuong tap) OR (luong tap)) toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - manh ((hung tuan) or (quang tuan)) dung ((cuong tap) OR (luong tap)) toan tap*.