Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
cong ngang » cong nhan, cong lang, cong nong
cong quang » luong quang, thong quang, duong quang
hoc thieu » toc thieu, hoc hien
nhanh ban » nhanh bac, nhanh ba, nhanh ngan
thanh ban » thanh san, thanh van, thanh bac
cua nhung » va nhung
toan cao » toan ban, toan tap

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 - ((nhanh ban) or (thanh ban)) cua nhung ((cong ngang) OR (cong quang)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((nhanh ban) OR (thanh ban)) cua nhung ((cong ngang) OR (cong quang)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((nhanh ban) or (thanh ban)) cua nhung ((cong ngang) OR (cong quang)) toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((nhanh ban) or (thanh ban)) cua nhung ((cong ngang) OR (cong quang)) toan cao*.