Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh hong, thanh thang
thong duong » tuong duong, thong dung, thong huong
thieu tinh » trieu tinh, chieu tinh, thien tinh
thong dong » thuong dong, thong cong, thong dung
hoc thieu » toc thieu, hoc hien
thong cap » thong cac, trung cap, thong cua
nang phan » nang thanh, nang quan, dung phan
nang phat » nang suat, van phat

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 tinh - thanh thong cap ((thong dong) OR (thong duong)) ((nang phan) or (nang phat)) lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - thanh thong cap ((thong dong) OR (thong duong)) ((nang phan) OR (nang phat)) lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - thanh thong cap ((thong dong) OR (thong duong)) ((nang phan) or (nang phat)) lap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh thong cap ((thong dong) OR (thong duong)) ((nang phan) or (nang phat)) lap*.