Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
manh thang » danh thang, minh thang, nhanh thang
anh thang » danh thang, anh thong, anh tang
theo hoc » thao hoc, theo hop, te hoc
hoc sach » hoc sinh, hoc cac, hoc anh
vang tan » tang tan, vang tao, vang van
van tan » van tuan, van ban, van tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hoc sach - ((anh thang) or (manh thang)) va nhung cong ((vang tan) OR (van tan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hoc sach - ((anh thang) OR (manh thang)) va nhung cong ((vang tan) OR (van tan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hoc sach - ((anh thang) or (manh thang)) va nhung cong ((vang tan) OR (van tan)) cao".
• Adding a wildcard symbol may retrieve word variants: theo hoc sach - ((anh thang) or (manh thang)) va nhung cong ((vang tan) OR (van tan)) cao*.