Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
duc thanh » duc tan, de thanh, cuu thanh
duc thang » duc tan, duc hung
thanh hai » thanh phan, thanh hoa, thanh san
lanh ly » lanh lay, doanh ly, khanh ly
ly nang » ky nang, ly hang, ly vang
hieu va » lieu va, hieu qua
ca tren » cau tren, cu tren, la tren
va cam » va cham, va cac, va cao
hai ca » hai cua, hai ba, bai ca
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh ly nang x hoi. hieu va cam ((duc thanh) OR (duc thang)) thanh hai ca tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ly nang x hoi. hieu va cam ((duc thanh) OR (duc thang)) thanh hai ca tren".
• Adding a wildcard symbol may retrieve word variants: thuat lanh ly nang x hoi. hieu va cam ((duc thanh) OR (duc thang)) thanh hai ca tren*.