Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thieu nang » thien nang, thieu khang, thieu quang
pham xuan » pham luan, pham quang, pham van
xuan nhan » xuan thanh, xuan toan, van nhan
hang noi » nang noi, dang noi, hang doi
hanh noi » ha noi, hanh vi, nang noi
bat tren » dat tren, bat truyen, bat trong
nang xa » nang x, lang xa, nang ma
hieu v » hieu va, hieu ve, hieu 2
v pham » vi pham, d pham

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach thieu nang xa hoi. hieu v pham xuan nhan ((hang noi) or (hanh noi)) bat tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach thieu nang xa hoi. hieu v pham xuan nhan ((hang noi) OR (hanh noi)) bat tren.
• Adding a wildcard symbol may retrieve word variants: thuat sach thieu nang xa hoi. hieu v pham xuan nhan ((hang noi) or (hanh noi)) bat tren*.