Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thanh hai » thanh hoa, thanh san
thu sach » tu sach, thuat sach, thuoc sach
cham duc » pham duc, cham soc, pham duy
cau tren » cu tren, dau tren, ca tren
hieu vu » hieu va, hieu ve, hieu su
kv nang » ky nang, ki nang, ke nang
vu cham » va cham, vu kham, tu cham
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((v nang) or (kv nang)) xa hoi. hieu vu cham duc va ((thanh hai) or (thanh phan)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((v nang) OR (kv nang)) xa hoi. hieu vu cham duc va ((thanh hai) OR (thanh phan)) cau tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ((v nang) or (kv nang)) xa hoi. hieu vu cham duc va ((thanh hai) or (thanh phan)) cau tren*.