Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
thanh tai » thanh hai, thanh toan, doanh tai
thi hang » thi hanh, thi nang, thi hong
va thanh » gia thanh, ban thanh, va tinh
hieu cua » hieu qua, dieu cua, bieu cua
cao viet » dao viet, co viet, ca viet
ty hang » ly hang, ty xang, thu hang
ty nang » ky nang, ty xang, ly nang
tai cao » thai cao, tao cao, tai sao
cac lo » cac lop, cac co, cac bo
lo va » lo van, lao va, ly va

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc sach ((ty nang) or (((ty hang) OR (thi hang)))) xa hoi. hieu cua cac lo va thanh tai cao viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc sach ((ty nang) OR (((ty hang) OR (thi hang)))) xa hoi. hieu cua cac lo va thanh tai cao viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach ((ty nang) or (((ty hang) OR (thi hang)))) xa hoi. hieu cua cac lo va thanh tai cao viet".
• Adding a wildcard symbol may retrieve word variants: nuoc sach ((ty nang) or (((ty hang) OR (thi hang)))) xa hoi. hieu cua cac lo va thanh tai cao viet*.