Perhaps you should try some spelling variations:
kem thuat » kiem thuat, ky thuat, ki thuat
kxy thuat » ky thuat, ki thuat, my thuat
thuat bao » thuat bai, thuat giao, thuat o
thuat do » thuat o
tu hanh » du hanh, lu hanh, thuc hanh
su sach » vu sach
so sach » so sanh, bo sach, co sach
bao khi » bao chi, ban khi, bao kha
do khi » doi khi, do thi, co 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 hanh kem thuat do khi ) or ( ((su sach) OR (so sach)) kxy thuat bao khi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu hanh kem thuat do khi ) OR ( ((su sach) OR (so sach)) kxy thuat bao khi )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu hanh kem thuat do khi ) or ( ((su sach) OR (so sach)) kxy thuat bao khi ))".
• Adding a wildcard symbol may retrieve word variants: (( tu hanh kem thuat do khi ) or ( ((su sach) OR (so sach)) kxy thuat bao khi ))*.