Perhaps you should try some spelling variations:
chat truc » cau truc, chat xuc
van chat » cao chat
thu sach » thuat sach, thuoc sach, thu hoach
hieu van » hieu va, thien van, lieu va
va danh » va dinh, va dan, va hanh
truc va » thuc va, thuc vat, trung va
tu sach » su sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
le cua » ly cua

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

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