Perhaps you should try some spelling variations:
nham thuat » phau thuat, nam thuan, nham thu
xay thanh » day thanh, giay thanh, ngay thanh
cau treo » cau theo, cau tren, cau triet
te sach » toc sach
ty nang » ky nang, ty hang, ly nang
hieu ve » hieu va, hieu van
ve nham » ve nha, ve cham
cuu tre » cua tre, cau tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ty nang) OR (ty xang)) xa hoi. hieu ve nham thuat xay thanh san ((cuu tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty xang)) xa hoi. hieu ve nham thuat xay thanh san ((cuu tre) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ty xang)) xa hoi. hieu ve nham thuat xay thanh san ((cuu tre) or (cau treo))".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ty xang)) xa hoi. hieu ve nham thuat xay thanh san ((cuu tre) or (cau treo))*.