Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
hieu van » hieu va, thien van, lieu va
cau tren » cu tren, dau tren, ca tren
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
cam cuc » cam xuc, cham cuu, pham cuc
cuc ban » cua ban, cac ban, cuu ban
ban han » ban hang, ban hanh, ban than
han tai » hang tai, nhan tai, van tai
tai cau » tai cac, tai cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (thuat lanh)) ky nang xa hoi. hieu van cam cuc ban han tai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thuat lanh)) ky nang xa hoi. hieu van cam cuc ban han tai cau tren.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thuat lanh)) ky nang xa hoi. hieu van cam cuc ban han tai cau tren*.