Perhaps you should try some spelling variations:
tung manh » hung manh, duong manh, luong manh
kmy thuat » ky thuat, my thuat, ki thuat
kxy thuat » ky thuat, ki thuat, my thuat
thuat co » thuat o
thuat do » thuat o
sac kmy » sac ky
tu manh » tu hanh, vu manh, suc manh
tu minh » thu minh, vu minh, thi minh
tu sac » tu sach, tu cac, tu san
do khi » doi khi, do thi, bo khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sac kmy thuat co khi ) or ( ((((tu manh) OR (tung manh))) or (tu minh)) kxy thuat do khi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sac kmy thuat co khi ) OR ( ((((tu manh) OR (tung manh))) OR (tu minh)) kxy thuat do khi ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu sac kmy thuat co khi ) or ( ((((tu manh) OR (tung manh))) or (tu minh)) kxy thuat do khi ))*".