Perhaps you should try some spelling variations:
va thieu » va thiet, va hieu, va tieu
han thai » han tai, ban thai, van thai
chat xuc » chat huu, cam xuc, chao xu
cham xuc » cam xuc, cham soc, pham duc
hieu ve » hieu va, hieu van
nang xa » lang xa, nang ma, mang xa
thai va » thai van
vu sach » vu bach, su sach, vu khach
va han » va phan, van han, va hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y ((nang xa) or (nang x)) hoi. hieu ve ((cham xuc) OR (chat xuc)) va han thai va thieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y ((nang xa) OR (nang x)) hoi. hieu ve ((cham xuc) OR (chat xuc)) va han thai va thieu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y ((nang xa) or (nang x)) hoi. hieu ve ((cham xuc) OR (chat xuc)) va han thai va thieu".
• Adding a wildcard symbol may retrieve word variants: vu sach y ((nang xa) or (nang x)) hoi. hieu ve ((cham xuc) OR (chat xuc)) va han thai va thieu*.