Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van chat » cao chat
hieu van » hieu va, thien van, lieu va
chat huu » pham huu
vai cua » dai cua, hai cua, lai cua
va dinh » van dinh, va kinh, va tinh
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
huu va » cuu va, tuu va
vi cua » di cua

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) or (thuat sach)) ky nang ma hoi. hieu van chat huu va dinh ((vi cua) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thuat sach)) ky nang ma hoi. hieu van chat huu va dinh ((vi cua) OR (vai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thuat sach)) ky nang ma hoi. hieu van chat huu va dinh ((vi cua) or (vai cua)) tre*.