Perhaps you should try some spelling variations:
chat truc » cau truc, chat xuc
hieu cao » chieu cao, hieu cac, hieu ca
thu sach » tu sach, thuat sach, thuoc sach
cau tren » cu tren, dau tren, ca tren
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
dai cau » dat cau, da cau, dai hau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (su sach)) ky nang xa hoi. hieu cao chat truc ((va danh) OR (va hanh)) dai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (su sach)) ky nang xa hoi. hieu cao chat truc ((va danh) OR (va hanh)) dai cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (su sach)) ky nang xa hoi. hieu cao chat truc ((va danh) OR (va hanh)) dai cau tren".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (su sach)) ky nang xa hoi. hieu cao chat truc ((va danh) OR (va hanh)) dai cau tren*.