Perhaps you should try some spelling variations:
chat truc » cau truc, chat xuc
toc sach » hoc sach, doc sach, thuoc sach
hieu cao » chieu cao, hieu cac, hieu ca
nang xa » nang x, lang xa, nang ma
truc va » thuc va, thuc vat, trung va
dau dai » dat dai, sau dai, dau da
cua tre » cuu tre, cua triet, dua tren
va dau » va dao
cua te » cua tu

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