Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cham tuc » pham thuc, tham thuc, cham soc
thi nang » thi cong, thi hanh
hanh tai » thanh tai, hang tai, han tai
so sanh » do sanh
tai cuu » tai cuc, tai buu, tai cua
xa hanh » xa thanh, xa khanh, va hanh
hieu ve » hieu va, hieu van
ki nang » ky nang
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ((thi nang) OR (ki nang)) xa hoi. hieu ve ((cham tuc) or (nham thuc)) xa hanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ((thi nang) OR (ki nang)) xa hoi. hieu ve ((cham tuc) OR (nham thuc)) xa hanh tai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ((thi nang) OR (ki nang)) xa hoi. hieu ve ((cham tuc) or (nham thuc)) xa hanh tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: so sanh ((thi nang) OR (ki nang)) xa hoi. hieu ve ((cham tuc) or (nham thuc)) xa hanh tai cuu tre*.