Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
cau luoc » cau luc, muu luoc, hau loc
hieu van » thien van, lieu va, hieu ve
luoc van » luoc can, luoc va, luc van
su sach » so sach, vu sach
vai cua » dai cua, hai cua, lai cua
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
hieu va » lieu va, hieu qua
ha hoi » hoa hoi, ha noi, xa hoi
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: ((su sach) or (thu hoach)) ky dang ha hoi. ((hieu van) or (hieu va)) cau luoc van thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu hoach)) ky dang ha hoi. ((hieu van) OR (hieu va)) cau luoc van thanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu hoach)) ky dang ha hoi. ((hieu van) or (hieu va)) cau luoc van thanh vai cua te*.