Perhaps you should try some spelling variations:
nhanh hai » nhanh thai, thanh hai, nhanh ha
sach cao » sach dao, sach cap, mach cao
cao nang » cao dang, cam nang, cao tang
hieu van » thien van, lieu va, hieu ve
hanh hai » thanh hai, hang hai, hanh tai
chu treo » cau treo, cu tren, cau tren
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach cao nang x ho. ((hieu van) OR (hieu va)) cam xuc van ((hanh hai) or (nhanh hai)) chu treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach cao nang x ho. ((hieu van) OR (hieu va)) cam xuc van ((hanh hai) OR (nhanh hai)) chu treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach cao nang x ho. ((hieu van) OR (hieu va)) cam xuc van ((hanh hai) or (nhanh hai)) chu treo".
• Adding a wildcard symbol may retrieve word variants: su sach cao nang x ho. ((hieu van) OR (hieu va)) cam xuc van ((hanh hai) or (nhanh hai)) chu treo*.