Perhaps you should try some spelling variations:
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
te sach » toc sach
xa hang » va hang, xa bang, xa hung
ty nang » ky nang, ty xang, ty hang
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
cac toc » cac toi, cac thoi
sach ty » sach y, sach tu, sach thu
di cua » doi cua, de cua, do cua

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 cao hoi. hieu ve ((cac toc) or (cac nuoc)) xa hang ((di cua) OR (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang cao hoi. hieu ve ((cac toc) OR (cac nuoc)) xa hang ((di cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang cao hoi. hieu ve ((cac toc) or (cac nuoc)) xa hang ((di cua) OR (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang cao hoi. hieu ve ((cac toc) or (cac nuoc)) xa hang ((di cua) OR (dai cua)) te*.